Bender rcm420 инструкция на русском

26 

TDB401016en / Main catalogue part 4 – Residual current monitors, Residual current monitoring systems / 07.2010

4.1

Residual current monitor RCM420

Insulation coordination acc. to IEC 60664-1/IEC 60664-3

Rated insulation voltage 

250 V

Rated impulse voltage/pollution degree  

4 kV / III

Protective separation (reinforced insulation) between
 

(A1, A2) — (k, l, T/R) — (11, 12, 14) — (21, 22, 24)

Voltage tests according to IEC 61010-1 

2.21 kV

Supply voltage

RCM420-D-1:
Supply voltage U

S

AC 16…72 V / DC 9.6…94 V

Frequency range U

S

42…460 Hz

RCM420-D-2:
Supply voltage U

S

AC/DC 70…300 V

Frequency range U

S

42…460 Hz

Power consumption 

≤ 3 VA

Measuring circuit

Measuring current transformers, external type  

W…, WR…, WS…

Load  68 

Ω

Rated insulation voltage (measuring current transformer)  

800 V

Operating characteristic acc. to IEC 62020 and IEC/TR 60755 

Type A

Rated frequency  

42…2000 Hz

Measuring range 

3 mA…16 A

Relative uncertainty  

0…-20%

Relative uncertainty  

 0…30%

Response values

Rated residual operating current I

Δn1

 (prewarning, AL1) 

50…100 % x I

Δn2

, (50 %)*

Rated residual operating current I

Δn2

 (alarm, AL2) 

10 mA…10 A (30 mA)*

Hysteresis  

10…25 % (15%)*

Specified time

Start-up delay t 

0…10 s (0.5 s)*

Response delay t

on2

 (alarm)  

0…10 s (0 s)*

Response delay t

on1

 (prewarning)  

0…10 s (1 s)*

Delay on release t

off

0…99 s (1 s)*

Operating time t

ae

 at I

Δn

 = 1 x I

Δn1/2

≤ 180 ms

Operating time t

ae

 at I

Δn

 = 5 x I

Δn1/2

≤ 30 ms

Response time t

an

t

an

 = t

ae

 + t

on1/2

Recovery time t

b

≤ 300 ms

Number of restart cycles  

0…100 (0)*

Cable lengths for measuring current transformers

Single wire ≥ 0.75 mm² 

0…1 m

Single wire, twisted ≥ 0.75 mm² 

0…10 m

Shielded cable ≥ 0.75 mm² 

0…40 m

Recommended cable 

(shielded, shield on one side connected to terminal l of the RCM420, not connected to earth)

J-Y(St)Y min. 2×0.8

Connection screw-type 

terminals

Displays, memory

Display range, measuring value  

3 mA…16 A

Error of indication  

 ±15 % / ± 2 digit

Measured-value memory for alarm value  

 data record measured values

Password  

off / 0…999 (off)*

Fault memory alarm relay  

on / off (on)*

Inputs/outputs

Cable length for external test/reset button 

0…10 m

Switching elements

Number of switching elements  

 2 x 1 changeover contact

Operating principle  

 N/C operation / N/O operation (N/C operation)*

Electrical endurance, number of cycles 

 10000

Contact data acc. to IEC 60947-5-1:
Utilisation category  

 AC-13   AC-14   DC-12   DC-12   DC-12

Rated operational voltage  

 230 V   230 V 

 24 V   110 V   220 V

Rated operational current  

 5 A 

 3 A 

 1 A 

 0.2 A 

 0.1 A

Minimum contact rating 

1 mA at AC/DC ≥ 10 V

Environment/EMC

EMC  

IEC 62020: 2005-11

Operating temperature  

 -25 ºC…+55 ºC

Climatic class acc. to IEC 60721
Stationary use (IEC 60721-3-3) 

3K5 (except condensation and formation of ice)

Transport (IEC 60721-3-2) 

2K3 (except condensation and formation of ice)

Long-time storage (IEC 60721-3-1) 

1K4 (except condensation and formation of ice)

Classification of mechanical conditions IEC 60721 
Stationary use (IEC 60721-3-3) 

3M4

Transport (IEC 60721-3-2) 

2M2

Long-time storage (IEC 60721-3-1) 

1M3

Connection

Connection type 

push-wire terminals

Connection properties
rigid 

0.2…2.5 mm² / AWG 24-12

flexible without ferrule 

0.2…2.5 mm² / AWG 24-12

flexible with ferrule 

0.2…1.5 mm² / AWG 24-16

Stripping length 

10 mm

Opening force 

50 N

Test opening, diameter 

2.1 mm

Other

Operating mode 

continuous operation

Position of normal use 

any

Degree of protection, internal components (IEC 60529) 

IP30

Degree of protection, terminals (IEC 60529) 

 IP20

Enclosure material 

 polycarbonate

Flammability class 

UL94V-0

DIN rail mounting acc. to 

 IEC 60715

Screw fixing 

 2 x M4 with mounting clip

Operating manual 

TGH1410

Weight  

≤ 150 g

(  )* = factory setting

Technical data

Ordering information

Type

Response range I

Δn

Frequency range

Measuring current transformers

Supply voltage U

S

*

Art. No.

RCM420-D-1

10 mA…10 A

42…2000 Hz

W…, WR…, WS… 

DC 9.6…94 V / AC 42…460 Hz  16…72 V

B 7401 4001

RCM420-D-2

10 mA…10 A

42…2000 Hz

W…, WR…, WS… 

DC 70…300 V / AC 42…460 Hz  70…300 V

B 7401 4002

Device version with screw terminals on request.
* Absolute values

Accompanying Data:

Bender RCM420 Series Measuring Instruments, Monitor PDF Technical Bulletin (Updated: Sunday 11th of June 2023 05:44:11 PM)

Rating: 4.5 (rated by 62 users)

Compatible devices: RCMA423AS, EDS3090, ISOMETER IRDH275BM-7, iso1685 Series, RCMA420, FP200, RCMA423, CMD420.

Recommended Documentation:

Text Version of Manual, Technical Bulletin

(Ocr-Read Summary of Contents of some pages of the Bender RCM420 Series Document (Main Content), UPD: 11 June 2023)

• Bender RCM420 Series User Manual

• Bender RCM420 Series User Guide

• Bender RCM420 Series PDF Manual

• Bender RCM420 Series Owner’s Manuals

Recommended: MDR-XB1000, 560689, Total Control

Additional Information:

Popular Right Now:

Operating Impressions, Questions and Answers:

EN
Manual
RCM420
Residual current monitor
for AC current monitoring in TN and TT systems
Software version: D240 V1.2x
RCM420_D00057_02_M_ XXEN/06.2016
Bender GmbH & Co. KG
P.O. Box 1161 • 35301 Gruenberg • Germany
Londorfer Strasse 65 • 35305 Gruenberg • Germany
Tel.: +49 6401 807-0 • Fax: +49 6401 807-259
E-Mail: [email protected] • www.bender.de
© Bender GmbH & Co. KG
All rights reserved.
Reprinting only with permission of the publisher.
Subject to change!
Photos: Bender archives
Table of Contents
1. Important information .................................................................................... 7
1.1
1.2
1.2.1
1.2.2
1.2.3
1.3
1.4
1.5
1.6
1.7
How to use this manual ................................................................................. 7
Technical support: service and support ................................................... 8
First level support ............................................................................................. 8
Repair service ..................................................................................................... 8
Field service ........................................................................................................ 9
Training courses ............................................................................................. 10
Delivery conditions ....................................................................................... 10
Inspection, transport and storage ........................................................... 10
Warranty and liability ................................................................................... 11
Disposal ............................................................................................................ 12
2. Safety instructions ......................................................................................... 13
2.1
2.2
2.3
General safety instructions ........................................................................ 13
Work activities on electrical installations ............................................. 13
Intended use ................................................................................................... 14
3. Function ........................................................................................................... 15
3.1
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
Device features ..............................................................................................
Function ............................................................................................................
Connection monitoring ..............................................................................
Additional cascaded measuring current transformer ......................
Fast response value query .........................................................................
Automatic self test ........................................................................................
Manual self test ..............................................................................................
Functional faults ............................................................................................
Set the number of reload cycles ..............................................................
Assigning alarm categories to alarm relays K1/K2 ............................
Time delays t, ton and toff .......................................................................
RCM420_D00057_02_M_ XXEN/06.2016
15
15
16
16
16
16
16
17
17
17
17
3
Table of Contents
3.2.10
3.2.11
3.2.12
3.2.13
3.2.14
3.2.15
Residual current monitoring in window discriminator mode ...... 18
Password protection (on, OFF) ................................................................. 18
Factory setting FAC ...................................................................................... 18
Erasable history memory ............................................................................ 18
External, combined test respectively reset button T/R ................... 18
Fault memory .................................................................................................. 18
4. Installation and connection ......................................................................... 19
5. Operation and setting .................................................................................. 23
5.1
5.2
5.3
5.4
5.5
5.5.1
5.5.2
5.5.3
5.5.4
5.5.5
5.5.6
5.5.7
5.5.8
5.5.9
5.5.10
5.5.11
5.5.12
5.6
5.7
5.8
4
Display elements ........................................................................................... 23
Function of the operating elements ...................................................... 24
Menu structure ............................................................................................... 25
Display in standard mode .......................................................................... 26
Display in menu mode ................................................................................ 27
Parameter query and setting: Overview ............................................... 27
Changeover from overcurrent to undercurrent mode or to window
mode .................................................................................................................. 29
Response value setting for overcurrent: ............................................... 30
Setting the fault memory and alarm relay operating mode .......... 30
Assigning alarm categories to the alarm relays ................................. 31
Set the time delays ....................................................................................... 33
Changing from overcurrent operation to window operation ...... 34
Setting the correction factor for an additional cascaded current
transformer ...................................................................................................... 34
Factory setting and password protection ............................................ 35
Re-establishing the factory settings ....................................................... 36
Device information query .......................................................................... 37
History memory query ................................................................................. 37
Commissioning .............................................................................................. 37
Factory setting ............................................................................................... 37
Error codes ....................................................................................................... 38
RCM420_D00057_02_M_ XXEN/06.2016
Table of Contents
6. Technical data ................................................................................................ 39
6.1
6.2
6.3
Data in tabular form ..................................................................................... 39
Standards, approvals and certifications ................................................ 42
Ordering information ................................................................................... 43
INDEX .................................................................................................................... 45
5
RCM420_D00057_02_M_ XXEN/06.2016
1. Important information
1.1 How to use this manual
This manual is intended for qualified personnel working in
electrical engineering and electronics!
Always keep this manual within easy reach for future reference.
To make it easier for you to understand and revisit certain sections in this manual, we have used symbols to identify important instructions and information.
The meaning of these symbols is explained below:
DANGER
This signal word indicates that there is a high risk of danger
that will result in electrocution or serious injury if not
avoided.
This signal word indicates a medium risk of danger that
can lead to death or serious injury if not avoided.
WARNING
CAUTION
This signal word indicates a low level risk that can result in
minor or moderate injury or damage to property if not
avoided.
This symbol denotes information intended to assist the user
in making optimum use of the product.
RCM420_D00057_02_M_ XXEN/06.2016
7
Important information
This manual has been compiled with great care. It might nevertheless contain
errors and mistakes. Bender cannot accept any liability for injury to persons or
damage to property resulting from errors or mistakes in this manual.
1.2 Technical support: service and support
For commissioning and troubleshooting Bender offers you:
1.2.1
First level support
Technical support by phone or e-mail for all Bender products
  Questions concerning specific customer applications
  Commissioning
  Troubleshooting
Telephone:
Fax:
In Germany only:
E-mail:
1.2.2
+49 6401 807-760*
+49 6401 807-259
0700BenderHelp (Tel. and Fax)
[email protected]
Repair service
Repair, calibration, update and replacement service for Bender products
  Repairing, calibrating, testing and analysing Bender products
  Hardware and software update for Bender devices
  Delivery of replacement devices in the event of faulty or incorrectly
delivered Bender devices
  Extended guarantee for Bender devices, which includes an in-house
repair service or replacement devices at no extra cost
Telephone:
Fax:
E-mail:
+49 6401 807-780** (technical issues)
+49 6401 807-784**, -785** (sales)
+49 6401 807-789
[email protected]
Please send the devices for repair to the following address:
8
RCM420_D00057_02_M_ XXEN/06.2016
Important information
Bender GmbH, Repair-Service,
Londorfer Str. 65,
35305 Grünberg
1.2.3
Field service
On-site service for all Bender products
  Commissioning, configuring, maintenance, troubleshooting of Bender
products
  Analysis of the electrical installation in the building (power quality test,
EMC test, thermography)
  Training courses for customers
Telephone:
Fax:
E-mail:
Internet:
+49 6401 807-752**, -762 **(technical issues)
+49 6401 807-753** (sales)
+49 6401 807-759
[email protected]
www.bender-de.com
*Available from 7.00 a.m. to 8.00 p.m. 365 days a year (CET/UTC+1)
**Mo-Thu 7.00 a.m. - 8.00 p.m., Fr 7.00 a.m. - 13.00 p.m
RCM420_D00057_02_M_ XXEN/06.2016
9
Important information
1.3 Training courses
Bender is happy to provide training regarding the use of test equipment.
The dates of training courses and workshops can be found on the Internet at
www.bender-de.com -> Know-how -> Seminars.
1.4 Delivery conditions
Bender sale and delivery conditions apply.
For software products the "Softwareklausel zur Überlassung von StandardSoftware als Teil von Lieferungen, Ergänzung und Änderung der Allgemeinen
Lieferbedingungen für Erzeugnisse und Leistungen der Elektroindustrie"
(software clause in respect of the licensing of standard software as part of deliveries, modifications and changes to general delivery conditions for products and services in the electrical industry) set out by the ZVEI (Zentralverband
Elektrotechnik- und Elektronikindustrie e. V.) (German Electrical and Electronic Manufacturer's Association) also applies.
Sale and delivery conditions can be obtained from Bender in printed or electronic format.
1.5 Inspection, transport and storage
Inspect the dispatch and equipment packaging for damage, and compare the
contents of the package with the delivery documents. In the event of damage
in transit, please contact Bender immediately.
The devices must only be stored in areas where they are protected from dust,
damp, and spray and dripping water, and in which the specified storage temperatures can be ensured.
10
RCM420_D00057_02_M_ XXEN/06.2016
Important information
1.6 Warranty and liability
Warranty and liability claims in the event of injury to persons or damage to
property are excluded if they can be attributed to one or more of the following causes:
  Improper use of the device.
  Incorrect mounting, commissioning, operation and maintenance of the
device.
  Failure to observe the instructions in this operating manual regarding
transport, commissioning, operation and maintenance of the device.
  Unauthorised changes to the device made by parties other than the
manufacturer.
  Non-observance of technical data.
  Repairs carried out incorrectly and the use of replacement parts or
accessories not approved by the manufacturer.
  Catastrophes caused by external influences and force majeure.
  Mounting and installation with device combinations not recommended by the manufacturer.
This operating manual, especially the safety instructions,
must be observed by all personnel working on the device. Furthermore,
the rules and regulations that apply for accident prevention at the place of use
must be observed.
RCM420_D00057_02_M_ XXEN/06.2016
11
Important information
1.7 Disposal
Abide by the national regulations and laws governing the disposal of this device. Ask your supplier if you are not sure how to dispose of the old equipment.
The directive on waste electrical and electronic equipment (WEEE directive)
and the directive on the restriction of certain hazardous substances in electrical and electronic equipment (RoHS directive) apply in the European Community. In Germany, these policies are implemented through the "Electrical and
Electronic Equipment Act" (ElektroG). According to this, the following applies:
  Electrical and electronic equipment are not part of household waste.
  Batteries and accumulators are not part of household waste and must
be disposed of in accordance with the regulations.
  Old electrical and electronic equipment from users other than private
households which was introduced to the market after 13 August 2005
must be taken back by the manufacturer and disposed of properly.
For more information on the disposal of Bender devices, refer to our
homepage at www.bender-de.com -> Service & support.
12
RCM420_D00057_02_M_ XXEN/06.2016
2. Safety instructions
2.1 General safety instructions
Part of the device documentation in addition to this manual is the enclosed
"Safety instructions for Bender products".
2.2 Work activities on electrical installations
Only qualified personnel are permitted to carry out the
work necessary to install, commission and run a device or
system.
DANGER
Risk of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
  An electric shock
  Damage to the electrical installation
  Destruction of the device
Before installing and connecting the device, make sure
that the installation has been de-energised. Observe the
rules for working on electrical installations.
If the device is used outside the Federal Republic of Germany, the applicable
local standards and regulations must be complied with. The European standard EN 50110 can be used as a guide.
RCM420_D00057_02_M_ XXEN/06.2016
13
Safety instructions
2.3 Intended use
The AC and pulsed DC sensitive residual current monitor RCM420 (Type A)
from Bender is designed for fault and residual current monitoring in earthed
power supply systems (TN/TT systems) where an alarm is to be activated in the
event of a fault, but disconnection must be prevented. In addition, the device
can be used to monitor single conductors, such as PE conductors, N-PE connections and PE-PAS connections.
Two separately adjustable response ranges IΔn1 and IΔn2 allow to distinguish
between prewarning and alarm (IΔn1 = 50…100 % of the set response value
IΔn2).
In order to meet the requirements of the applicable standards, customised parameter settings must be made on the equipment in order to adapt it to local
equipment and operating conditions. Please heed the limits of the range of
application indicated in the technical data.
Any use other than that described in this manual is regarded as improper.
14
RCM420_D00057_02_M_ XXEN/06.2016
3. Function
3.1 Device features










AC and pulsed DC sensitive residual current monitor Type A according
to IEC 62020
Adjustable switching hysteresis
r.m.s. value measurement
Starting delay, response delay and delay on release
Measured value display via multi-functional LC display
Alarm indication via LEDs (AL1, AL2) and changeover contacts (K1, K2)
N/C operation or N/O operation selectable
Password protection against unauthorized parameter changing
Fault memory function can be switched off
CT connection monitoring
3.2 Function
Once the supply voltage Us is applied, the starting delay "t" is activated. Measured values exceeded during this time do not influence the switching state
of the alarm relays. Residual current monitoring takes place via an external
measuring current transformer. The currently measured value is shown on the
LC display. In this way any changes can be recognized easily, for example,
when circuits are connected to the system. If the measured value exceeds one
or both response values, the response delay ton1/2 starts running. After the expiry of the response delay ton1/2, the selected alarm relay switches and the
alarm LEDs light. If the release value is not reached before the expiry of ton, no
alarm will be signalled: the LEDs AL1, AL2 do not light and the alarm relays do
not switch. The set release time toff begins when the measured value again
falls below the release value (response value plus hysteresis) after the switching of the alarm relays. After the expiry of toff, the alarm relays switch back
to their initial position. With the fault memory activated, the alarm relays do
not change their actual state until the reset button R is pressed. The device
RCM420_D00057_02_M_ XXEN/06.2016
15
Function
function can be tested using the test button T. The parameterization of the
device can be carried out via the LC display and the function keys integrated
in the front plate and can be password-protected.
3.2.1
Connection monitoring
The CT connections are continuously monitored. In the event of a fault, the
alarm relays K1 / K2 switch without delay, the alarm LEDs AL1 / AL2 / ON flash
(Error Code E.01). After eliminating the fault, the alarm relays automatically return to their initial position, provided that the fault memory M is deactivated.
With the fault memory activated, K1/K2 return to their initial position by pressing the reset button R. A second cascaded measuring current transformer
will not be monitored.
3.2.2
Additional cascaded measuring current transformer
For applications where residual currents higher than 10 A occur, a second external transformer can be cascaded. The transformer's transmission ratio can
be adapted using the correction factor nRCM in the SEt menu. Refer to page 21
and page 34.
3.2.3
Fast response value query
With the display in standard mode, the currently measured response values
IΔn1 and IΔn2 can be queried pressing the Up and Down keys ( < 1.5 s). Switchover to the Menu mode is not required. If you want to exit the fast response value query, press the enter key.
3.2.4
Automatic self test
The device automatically carries out a self test after connecting to the system
to be monitored and later every 24 hours. During the self test internal functional faults will be detected and appear in form of an error code on the display.
The alarm relays are not checked during this test.
3.2.5
Manual self test
After pressing the test button for > 1.5 s, the device carries out a self test.
During this test, internal functional faults are detected and will be displayed
in form of an error code. The alarm relays are not checked during this test.
16
RCM420_D00057_02_M_ XXEN/06.2016
Function
While the test button T is pressed and held down, all device-related display
elements appear on the display.
3.2.6
Functional faults
If an internal functional fault occurs, all three LEDs flash. An error code will
appear on the display (E01…E32). In such a case please contact the Bender
Service.
3.2.7
Set the number of reload cycles
If faults occur only temporarily, but recurrently, in the system being monitored, with the fault memory M deactivated, the alarm relays would switch synchronously to the error status.
RL in the out menu can be used to limit the number of these changeover
processes. As soon as the preset number of switching cycles is exceeded, the
fault memory will come on and an activated alarm remains stored.
3.2.8
Assigning alarm categories to alarm relays K1/K2
The alarm categories device error, residual current IΔn1, residual current IΔn2 or
device test can be assigned to the alarm relay via the "out" menu.
3.2.9
Time delays t, ton and toff
The times t, ton and toff, described below, delay the output of alarms via LEDs
and relays.
Starting delay t
After connection to the supply voltage US, the alarm indication is delayed by
the preset time t (0…10 s).
Response delay ton1/2
If the response value is exceeded or not reached, the residual current monitor
requires the response time tan. After the expiry of the response time an alarm
is signalled. A set response delay ton1/2 (0…10 s) adds up to the device-related
operating time tae and delays alarm signalling (total delay time tan = tae + ton).
If the residual current fault changes from a value above the response value to
a value below the response value, an alarm will not be signalled.
RCM420_D00057_02_M_ XXEN/06.2016
17
Function
Delay on release toff
When no alarm exists after deactivating the fault memory, the alarm LEDs go
out and the alarm relays switch back to their initial position. After activating
the delay on release (0…300 s), the alarm state is continuously maintained for
the selected period.
3.2.10 Residual current monitoring in window discriminator
mode
Change the measuring principle by selecting the window mode (SEt / In). In
the window discriminator mode, the threshold values I1 and I2 represent the
upper and the lower value. If the measured value is not within this area, an
alarm is initiated by the device. See page 34.
3.2.11 Password protection (on, OFF)
When the password protection is activated (on), settings are only possible
after entering the correct password (0…999).
3.2.12 Factory setting FAC
After activating the factory setting, all settings previously changed are reset to
delivery status.
3.2.13 Erasable history memory
The first alarm value that occurs will be saved in this memory. The memory can
be cleared via the menu HiS.
3.2.14 External, combined test respectively reset button T/R
Reset = Pressing the external button < 1.5 s
Test = Pressing the external button > 1.5 s
3.2.15 Fault memory
The fault memory can be activated, deactivated or set to continuous mode
(con). If the fault memory is set to "con" mode, the alarm parameters remain
stored even on failure of the supply voltage. Stored alarms can be reset by means of the reset button R.
18
RCM420_D00057_02_M_ XXEN/06.2016
4. Installation and connection
Only qualified personnel are permitted to carry out the
work necessary to install, commission and run a device or
system.
DANGER
Risk of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
  An electric shock
  Damage to the electrical installation
  Destruction of the device
Before installing and connecting the device, make sure
that the installation has been de-energised. Observe the
rules for working on electrical installations.
Dimension diagram, drawing for screw mounting, push-wire terminal connection
Zubehör/
Accessory
36 mm
45
116 mm
67,5
RCM420_D00057_02_M_ XXEN/06.2016
100 mm
2
90 mm
,5
70
,5
47
,1
31
1
3
19
Installation and connection
The front plate cover is easy to open at the lower part marked by an arrow.
1. DIN rail mounting:
Snap the rear mounting clip of the device into place in such a way that
a safe and tight fit is ensured.
Screw fixing:
Use a tool to move the rear mounting clips (a second mounting clip
required, see ordering information) to a position that it projects beyond the enclosure. Then fix the device using two M4 screws.
2. Wiring
Connect the device according the wiring diagram.
T/R
A1 A2
k
l
11 12 14
Load
T/R 21 22 24
Terminal Connections
A1, A2 Connection to supply voltage Us
k, l Connection of measuring current transformers
T / R Connection to the combined test and reset button
11, 12, 14 Alarm relay K1
21, 22, 24 Alarm relay K2
20
RCM420_D00057_02_M_ XXEN/06.2016
Installation and connection
Connection of an additional cascaded measuring current transformer
If the residual current range of 10 A is not sufficient, an additional measuring
current transformer can be cascaded. Connect the measuring current transformer as illustrated in the drawing below.
X1
nRCM =
X2
RCM420
X2
X1
(x A/10 A)
(x A/5 A)
(x A/1 A)
BENDER
W..., WR..., WS...
Load
Example:
An additionally cascaded transformer on the load side has a transmission ratio
of X1 = 100 (500 A / 5 A). That means, when the lowest value of 10 mA is set at
the RCM420, a current of 1 A can only just be detected on the primary side of
the transformer on the load side. In order to reduce the value that can be detected to 100 mA, 10 turns of the supply cable has to be routed through the
transformer on the RCM side.
Hence, the correction factor to be set is
nRCM = X1:X2 = 100:10 = 10.
The correction factor can be set via the SEt/n menu. Refer to page 34.
The correction factor is factory set to 1 and relates to normal operation with
one Bender measuring current transformer only (X = 600:1).
RCM420_D00057_02_M_ XXEN/06.2016
21
Installation and connection
22
RCM420_D00057_02_M_ XXEN/06.2016
5. Operation and setting
5.1 Display elements
A detailed description of the meaning of the display elements is given in the
table below.
Display elements
Element
RL
n
I2
I1
r1, 1
r2, 2
Function
Reload function with memory = off
(L = I.)
Transformation ratio factor for a
second external measuring current
transformer.
Response value IΔn2 as mA
(Alarm 2)
Response value IΔn1 as % of IΔn2
(Alarm 1, prewarning.)
Alarm relay K1
Alarm relay K2
I Hys,
%
Response value hysteresis as %.
ton1,
ton2,
t,
toff
Response delay ton1 (K1)
Response delay ton2 (K2)
Starting delay t,
Delay on release toff for K2
M
fault memory active
Relay operating mode K2
Password protection enabled
RCM420_D00057_02_M_ XXEN/06.2016
23
Operation and setting
5.2 Function of the operating elements
Device front
ON
T
24
AL1 AL2
R
MENU
Element
Function
ON, lights continuously: Power On LED
green flashes:
System fault or connection monitoring fault
AL1, LED Alarm 1 lights (yellow):
Response value 1 reached (IΔn1)
AL2
LED Alarm 2 lights (yellow): Response value 2 reached (IΔn2)
13 mA 13 mA flow through
the measuring current transformer,
fault memory active
M
T,
Test button (> 1.5 s):
To indicate the available display elements, to start a self test;
Up key (< 1.5 s):
Menu items/values
R,
Reset button (> 1.5 s):
Deleting the fault memory;
Down key (< 1.5 s):
Menu items/values
MENU, MENU key (> 1.5 s):
Starting the menu mode;
Enter key (< 1.5 s):
Confirm menu item, submenu item
and value.
Enter key (> 1.5 s):
Back to the next higher menu level.
RCM420_D00057_02_M_ XXEN/06.2016
Operation and setting
5.3 Menu structure
All adjustable parameters are listed in the columns "menu item" and "adjustable parameters". A display-like representation is used to illustrate the parameters in the column menu item. Different alarm categories can be assigned
to the alarm relays K1, K2 via the submenus r1, r2. This is done by activation or
deactivation of the respective function.
Menu
Sub
Menu
AL
(response values)
out
r1
(output con- (K1: (assignment alarm
trol)
category)
r2
(K2: (assignment alarm
category)
t
(timing
check)
Menu
item
Activati
on
> I2
- (HI)
IΔn2 (Alarm 2)
> I1
- (HI)
Hys
-
IΔn1 as % of IΔn2
(Alarm 1, prewarning)
Hysteresis IΔn1 / IΔn2
M
1
ON
-
Fault memory
Operating mode K1 (n.c.)
2
-
Operating mode K2 (n.c.)
RL
-
1 Err
r1 I1
ON
ON
Reload function (memory =
off )
Device error at K1
Prewarning IΔn1 at K1
r1
I2
off
Alarm IΔn2 at K1
1 tES
2 Err
r2 I1
ON
ON
off
Device test
Device error at K2
Prewarning IΔn1 at K2
r2
I2
ON
Alarm IΔn2 at K2
2 tES
t on 1
t on 2
t
t off
ON
-
Device test
Response delay K1
Response delay K2
Starting delay
Delay on release K1/K2
RCM420_D00057_02_M_ XXEN/06.2016
Adjustable parameter
25
Operation and setting
Menu
Sub
Menu
Menu
item
Activati
on
I 12
HI
n
1
Set
(device control)
off
FAC
-
SYS
-
Clr
-
InF
HiS
Adjustable parameter
Selectable parameters:
High, window function, low
Transformation ratio factor
for a second external
measuring current transformer.
Parameter setting via password
Re-establish factory settings
Function blocked
Display hard / software version
History memory for the first
alarm value, erasable
5.4 Display in standard mode
By default, the currently measured residual current is displayed. The current
response values I1 (prewarning) and I2 (alarm) can be displayed using the Up
and Down key. Press the Enter key to return to the measured value.
In the standard mode, the currently set response values I 1
and
I 2 can be displayed using the Up and Down keys.
26
RCM420_D00057_02_M_ XXEN/06.2016
Operation and setting
5.5 Display in menu mode
5.5.1
Menu
item
Parameter query and setting: Overview
Adjustable parameter
InF
Response values query and setting:
– Residual current I2 (IΔn2) (AL2)
– Residual current I1 (IΔn1) (AL1)
– Hysteresis of the response values: % Hys
Configuration of the fault memory and the alarm relays:
– Activating/deactivating the fault memory or assign
continuous mode (on/off/con)
– Select N/O operation (n.o.) or N/C operation (n.c.)
individually for each K1/K2
– Specify the number of the reload cycles
– Assign the alarm category I1 (IΔn1) or I2 (IΔn2), relay test
or device error individually to K1/K2 (1, r1/ 2, r2).
Set delays:
– Response delay ton1/ton2
– Starting delay t
– Delay on release toff (LED, relay)
Device control parameter setting:
– Select the appropriate parameter for response values:
overcurrent mode (HI), undercurrent mode (Lo) or window mode (In).
– Set the correction factor nRCM (n) for additional cascaded current transformer.
– Enable or disable password protection, change the password.
– Re-establish factory settings.
– Service menu SyS blocked
Query hard and software version
HiS
Query the first stored alarm value.
AL
out
t
SEt
RCM420_D00057_02_M_ XXEN/06.2016
27
Operation and setting
ESC
Move to the next higher menu level (back)
Menu structure
t >1,5 s
t > 1,5 s
t < 1,5 s
AL
out
t
SEt
InF
HiS
ESC
t < 1,5 s
t > 1,5 s
ESC
28
RCM420_D00057_02_M_ XXEN/06.2016
Operation and setting
Parameter settings
The following description is based on the fact that the device is in the standard mode and that the measured value of the residual current is being indicated, refer to page 26.
An example is given here on how to change the alarm response value I1 (IΔn1).
It is presumed that the option overcurrent (HI) has been selected in the SEt/I
12 menu (factory setting). Proceed as follows:
1. To access the menu mode, press the MENU/Enter key for more than 1.5
seconds. The flashing short symbol AL appears on the display.
2. Confirm with Enter. The parameter response value > I 2 flashes, in addition the associated overcurrent value > 30 mA appears.
3. Use the Down key to select the parameter response value I 1. The parameter I 1 flashes, in addition the associated percentage value for
prewarning 50 % of I 2 appears.
4. Confirm with Enter. The current value for prewarning appears on the
flashing display.
5. Use the Up or Down key to set the appropriate response value. Confirm
with Enter. I 1 flashes.
6. You can exit the menu by:
– Pressing the Enter key for more than 1.5 seconds to reach the next
higher level or
– Selecting the menu item ESC and confirming with Enter to reach
the next higher level.
The currently active segments are flashing! In the figures
below, the segments where device settings can be carried out
are highlighted by an oval. The menu mode can be reached
by pressing the MENU key for more than 1.5 seconds.
5.5.2
Changeover from overcurrent to undercurrent mode or to
window mode
The operating mode can be changed in the SEt/I 12 menu using the parameters HI, Lo and In. By default, overcurrent operation (HI) is set. Refer to page 34
for a detailed description on how to change over to the window mode.
RCM420_D00057_02_M_ XXEN/06.2016
29
Operation and setting
5.5.3
Response value setting for overcurrent:
- Response value I2 (overcurrent IΔn2)
- Response value I1 (overcurrent IΔn1)
- Hysteresis (Hys) of the response values IΔn1, IΔn2
Increasing the response value I2 (alarm overcurrent)
Increasing the response value I1 (prewarning overcurrent).
1x
Setting the hysteresis of the response value
2x
5.5.4
30
Setting the fault memory and alarm relay operating mode
RCM420_D00057_02_M_ XXEN/06.2016
Operation and setting
Setting the fault memory to con mode
Setting the alarm relay K1 to N/O operation (n.o.)
1x
Setting the number of reload cycles
3x
2x
>1,5 s
5.5.5
Assigning alarm categories to the alarm relays
Overcurrent, undercurrent and device-related errors of the residual current
monitor can be assigned to the alarm relays K1 (r1, 1) and K2 (r2, 2). By default,
the alarm relays K1 and K2 signal prewarning and alarm in case of overcurrent
and device-related errors.
RCM420_D00057_02_M_ XXEN/06.2016
31
Operation and setting
Alarm relay K1: Deactivating the category device error
4x
3x
>1,5 s
Alarm relay K1: Deactivating the category response value I1
4x
1x
3x
>1,5 s
Alarm relay K1: Activating the category response value I2
4x
2x
3x
>1,5 s
32
RCM420_D00057_02_M_ XXEN/06.2016
Operation and setting
Alarm relay K1: Deactivating the category "Alarm by device test"
4x
3x
3x
>1,5 s
CAUTION
5.5.6
When an alarm relay (K1/K2) has been deactivated in the
menu, an alarm will not be signalled by the respective
changeover contact! An alarm will only be indicated by the
respective alarm LED (AL1/AL2)!
Set the time delays
The following delays can be set:

Response delay ton1 (0…10 s) for K1, and ton2 (0…10 s) for K2

Starting delay t (0…10 s) when the device is being started

Common delay on release toff (0…300 s) for K1, K2. The setting toff is
only relevant when the fault memory M is deactivated.
The operating steps for the setting of the response delay ton1 and the starting
delay t are illustrated by way of example.
RCM420_D00057_02_M_ XXEN/06.2016
33
Operation and setting
Setting the response delay ton1
2x
>1,5 s
Setting the starting delay t
2x
2x
>1,5 s
5.5.7
Changing from overcurrent operation to window
operation
Use this menu item to set whether the response values of the device apply to
overcurrent (HI) or undercurrent operation (Lo). In addition, window operation (In) can be selected.
2x
>1,5 s
5.5.8
34
Setting the correction factor for an additional cascaded
RCM420_D00057_02_M_ XXEN/06.2016
Operation and setting
current transformer
1x
2x
>1,5 s
Factory setting without cascaded transformer: n = 1.
5.5.9
Factory setting and password protection
Use this menu to activate the password protection, to change the password
or to deactivate the password protection. In addition, you can reset the device
to its factory settings.
a) Activating the password protection
2x
2x
>1,5 s
RCM420_D00057_02_M_ XXEN/06.2016
35
Operation and setting
b) Changing the password
2x
2x
>1,5 s
c) Deactivating the password protection
2x
2x
>1,5 s
5.5.10 Re-establishing the factory settings
3x
....
36
RCM420_D00057_02_M_ XXEN/06.2016
Operation and setting
5.5.11 Device information query
This function is used to query the software (1.xx) versions. After activating this
function, data will be displayed as a scrolling text. Once one pass is completed
you can select individual data sections using the Up/Down keys.
....
....
5.5.12 History memory query
The history memory can be selected via the menu HiS. Use the Up and Down
keys to view the next display. If Clr is flashing, the history memory can be cleared by pressing the Enter key.
5.6 Commissioning
Prior to commissioning, check proper connection of the residual current monitor.
5.7
Factory setting
Response
value
overcurrent
(prewarning)
Response value overcurrent I2 (alarm)
Hysteresis:
Fault memory M:
Operating mode K1/K2
Starting delay:
Response delay:
Delay on release:
Transformer correction factor n (nRCM)
Password:
RCM420_D00057_02_M_ XXEN/06.2016
I1
15 mA (50 % of I2)
30 mA
15 %
activated (on)
N/C operation (n.c.)
t = 0.5 s
ton1 = 1 s
ton2 = 0 s
toff = 1 s
1
0, deactivated (Off)
37
Operation and setting
5.8 Error codes
Should, contrary to all expectations, a device error occur, error codes will appear on the display. Typical error codes are described below:
Error
code
38
Meaning:
E.01
Fault CT connection monitoring
Appropriate action: Check CT connection for short-circuit or
interruption. After eliminating the fault, the error code will be
automatically deleted.
E.02
Fault CT connection monitoring during manual self test.
Appropriate action: Check CT connection for short-circuit or
interruption. After eliminating the fault, the error code will be
automatically deleted.
E….
Appropriate action when error codes > 02 occur:
Carry out a reset. Reset the device to factory setting. After eliminating the fault, the error code will be automatically deleted. If
the fault continues to exist, please contact the Bender Service.
RCM420_D00057_02_M_ XXEN/06.2016
Technical data
6. Technical data
6.1 Data in tabular form
( )* = factory setting
Insulation coordination acc. to IEC 60664-1/IEC 60664-3
RCM420-D-1:
Rated insulation voltage ................................................................................................................. 100 V
Overvoltage category/pollution degree............................................................................................. III/3
Rated impulse voltage ................................................................................................................... 2,5 kV
RCM420-D-2:
Rated insulation voltage ................................................................................................................ 250 V
Overvoltage category/pollution degree............................................................................................. III/3
Rated impulse voltage....................................................................................................................... 4 kV
Supply voltage
RCM420-D-1:
Supply voltage range Us .......................................................................... AC 24…60 V / DC 24…78 V
Operating range Us ................................................................................. AC 16…72 V / DC 9.6…94 V
Frequency range Us ..................................................................................................... DC, 42…460 Hz
RCM420-D-2:
Supply voltage range Us......................................................................................... AC/DC 100…250 V
Operating range Us................................................................................................... AC/DC 70…300 V
Frequency range Us ........................................................................................................... 42…460 Hz
Protective separation (reinforced insulation) between................... (A1, A2) - (k/l, T/R) - (11, 12, 14) - (21, 22, 24)
Voltage test according to IEC 61010-1 ............................................................................................................... 2.21 kV
Power consumption ............................................................................................................................................ ≤ 4 VA
Measuring circuit
External measuring current transformer type............................................................................ W…, WR…, WS…
Load........................................................................................................................................................................... 68 Ω
Rated insulation voltage (measuring current transformer) ................................................................................. 800 V
Operating characteristic acc. to IEC 62020............................................................................................................ type A
Frequency range ..................................................................................................................................... 42…2000 Hz
Measuring range ....................................................................................................................................... 3 mA…16 A
RCM420_D00057_02_M_ XXEN/06.2016
39
Technical data
Relative uncertainty .................................................................................................................................... 0 … -20 %
Operating uncertainty .................................................................................................................................... 0…30%
Response values
Rated residual operating current IΔn1 (prewarning, AL1) .............................................50…100 % x IΔn2, (50 %)*
Rated residual operating current IΔn2 (Alarm, AL2) ............................................................ 10 mA…10 A (30 mA)*
Hysteresis ....................................................................................................................................... 10…25 % (15%)*
Specified time
Starting delay t ................................................................................................................................... 0…10 s (0.5 s)*
Response delay ton2 (Alarm) ................................................................................................................ 0…10 s (0 s)*
Response delay ton1 (prewarning) ....................................................................................................... 0…10 s (1 s)*
Delay on release toff ............................................................................................................................ 0…300 s (1 s)*
Operating time tae at IΔn = 1 x IΔn1/2 ............................................................................................................ ≤ 180 ms
Operating time tae at IΔn = 5 x IΔn1/2 .............................................................................................................. ≤ 30 ms
Response time tan .............................................................................................................................. tan = tae + ton1/2
Recovery time tb ............................................................................................................................................. ≤ 300 ms
Number of reload cycles .......................................................................................................................... 0…100 (0)*
Cable lengths for measuring current transformers
Single wire ≥ 0.75 mm2 ................................................................................................................................. 0…1 m
Single wire, twisted ≥ 0.75 mm2 ................................................................................................................. 0…10 m
Shielded cable ≥ 0.75 mm2 .......................................................................................................................... 0…40 m
Recommended cable
(shielded, shield on one side connected to terminal l of the RCM420, not connected to earth) ..................................
........................................................................................................................................................ J-Y(St)Y min. 2 x 0.8
Connection ..............................................................................................................................................screw terminals
Displays, memory
Display range, measured value ................................................................................................................ 3 mA…16 A
Error of indication .............................................................................................................................± 15 % / ± 2 digit
Measured-value memory for alarm value ..................................................................... data record measured values
Password ...................................................................................................................................... off / 0…999 (OFF)*
Fault memory alarm relay ........................................................................................................................ on / off (off)*
Inputs/outputs
Cable length for external test / reset button................................................................................................... 0…10 m
40
RCM420_D00057_02_M_ XXEN/06.2016
Switching elements
Number of switching elements ............................................................................................. 2 x 1 changeover contact
Operating principle ........................................................................... N/C operation/ N/O operation (N/O operation)*
Electrical service life under rated operating conditions.................................................... 10000 switching operations
Contact data acc. to IEC 60947-5-1:
Utilization category
AC-13 AC-14
DC-12 DC-12
DC-12
Rated operational voltage
230 V 230 V
24 V
110 V
220 V
Rated operational voltage UL
200 V 200 V
24 V
110 V
200 V
Rated operational current
5A
3A
1A
0.2 A
0.1 A
Minimum contact load..............................................................................................................1 mA at AC / DC ≥ 10 V
Environment/EMC
EMC .................................................................................................................................................................. IEC 62020
Operating temperature ...................................................................................................................... -25 ºC…+55 °C
Classification of climatic conditions IEC 60721
Stationary use (IEC 60721-3-3) ........................................................3K5 (except condensation and formation of ice)
Transportation (IEC 60721-3-2) ........................................................2K3 (except condensation and formation of ice)
Storage (IEC 60721-3-1) ...................................................................1K4 (except condensation and formation of ice)
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) .............................................................................................................................. 3M4
Transportation (IEC 60721-3-2) .............................................................................................................................. 2M2
Storage (IEC 60721-3-1) ......................................................................................................................................... 1M3
Option "W" data different from the standard version
Classification of climatic conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) ................................................. 3K5 (condensation and formation of ice is possible)
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) ............................................................................................................................. 3M7
Connection
For UL application................................................................................................ use 60/70 °C copper conductors only
Connection type.......................................................................................................... screw-type terminals
Connection properties:
rigid/ flexible/ conductor sizes ................................................................. 0.2…4 / 0.2…2.5 mm2 / AWG 24…12
RCM420_D00057_02_M_ XXEN/06.2016
41
Technical data
Multi-conductor connection (2 conductors with the same cross section):
rigid, flexible........................................................................................................................ 0.2…1.5 / 0.2…1.5 mm2
Stripping length ............................................................................................................................................ 8…9 mm
Tightening torque .................................................................................................................................... 0.5…0.6 Nm
Connection type............................................................................................................ push-wire terminals
Connection properties:
Rigid .......................................................................................................................... 0.2…2.5 mm2 ( AWG 24…14)
Flexible without ferrules ......................................................................................... 0.75…2.5 mm2 ( AWG 19…14)
Flexible with ferrules................................................................................................. 0.2…1.5 mm2 ( AWG 24…16)
Stripping length .................................................................................................................................................. 10 mm
Opening force........................................................................................................................................................... 50 N
Test opening, diameter....................................................................................................................................... 2.1 mm
Other
Operating mode ........................................................................................................................... continuous operation
Position of normal use ................................................................................................................................................any
Protection class, internal components (DIN EN 60529) ......................................................................................... IP 30
Degree of protection, terminals (DIN EN 60529).................................................................................................... IP 20
Enclosure material ....................................................................................................................................polycarbonate
Flammability class .............................................................................................................................................UL94V-0
DIN rail mounting acc. to................................................................................................................................. IEC 60715
Screw mounting................................................................................................................... 2 x M4 with mounting clip
Weight ............................................................................................................................................................... ≤ 150 g
( )* = factory setting
6.2 Standards, approvals and certifications
42
RCM420_D00057_02_M_ XXEN/06.2016
Technical data
6.3 Ordering information
RCM420-D-1
RCM420-D-2
Response range IΔn
10 mA…10 A
10 mA…10 A
Rated frequency
42…2000 Hz
42…2000 Hz
Measuring current
transformers
W…, WR…, WS… series
W…, WR…, WS… series
Supply voltage Us*
DC 9.6 V…94 V /
AC 42…460 Hz, 16…72 V
DC 70…300 V /
AC 42…460 Hz,
70…300 V
Art. No.:
(B 7… = push-wire
terminal)
B 7401 4001
B 9401 4001
B 7401 4001W
B 9401 4001W
*Absolute values of the voltage range
B 7401 4002
B 9401 4002
External measuring current transformers
Type
Inside diameter (mm)
Art. No.
W20
W35
W60
W120
W210
WR70x175
WR115x305
WS50x80
WS80x120
20
35
60
120
210
70 x 175
115 x 305
50 x 80
80 x 120
B 9808 0003
B 9808 0010
B 9808 0018
B 9808 0028
B 9808 0034
B 9808 0609
B 9808 0610
B 9808 0603
B 9808 0606
RCM420 accessories
Mounting clip for screw fixing (1 piece per device) ................................................................................. B 9806 0008
Measuring current transformers accessories
Snap-on mounting for DIN rail: W20… /W35… ................................................................................. B 9808 0501
Snap-on mounting for DIN rail: W60 .........................................................................................................B 9808 0502
RCM420_D00057_02_M_ XXEN/06.2016
43
Technical data
44
RCM420_D00057_02_M_ XXEN/06.2016
INDEX
A
I
Adjustable parameters, list 25
Automatic self test 16
Installation and connection 19
Intended use 14
C
K
Connection of an additional cascaded
measuring current transformer 21
Continuous mode (con), fault memory 18
K1/K2: assignment alarm category 25
D
Delay on release toff 18
Deleting the fault alarms 24
Device features 15
Display elements 23
Display in standard mode 26
E
ENTER key 24
Example of parameter setting 29
F
Factory setting 18, 37
Function 15
Functional faults 17
H
How to use this manual 7
RCM420_D00057_02_M_ XXEN/06.2016
L
LED Alarm 1 lights 24
LED Alarm 2 lights 24
M
Manual self test 16
Menu
- AL (response values) 25
- HiS (history memory for the first
alarm value) 26
- InF (hard and software version) 26
- out (output control) 25
- Set (device control 26
- t (timing check) 25
Menu structure, overview 25
O
Operating elements, function 24
Operation and setting 23
Ordering information 43
45
P
Parameter query and setting, overview 27
Parameter setting
- Activating or deactivating the password protection 35
- Assigning alarm categories to the
alarm relays 31
- Changing from overcurrent operation to window operation 34
- Set response values 30
- Set the time delays 33
- Setting the fault memory to con
mode 31
Password protection 18
Starting delay t 17
Starting the menu mode 24
Support 8
T
Technical data 39
Test button 24
Training courses 10
W
Wiring diagram 20
Wondow mode 34
Work activities on electrical installations 13
workshops 10
R
Reset button 24
Residual current monitoring in window
discriminator mode 18
Response delay ton 17
S
Second external measuring current transformer 16
Select the appropriate parameter for response values 27
Service 8
Set response values
- Hysteresis 30
- Overcurrent (> I) 30
Set the correction factor for additional cascaded current transformer. 34
Setting the number of reload cycles 31
46
RCM420_D00057_02_M_ XXEN/06.2016
Bender GmbH & Co. KG
P.O. Box 1161 • 35301 Gruenberg • Germany
Londorfer Strasse 65 • 35305 Gruenberg • Germany
Tel.: +49 6401 807-0 • Fax: +49 6401 807-259
E-Mail: [email protected] • www.bender.de
Photos: Bender archives
BENDER Group