Bender ISOMETER isoRW425 User manual

Quickstart ENisoRW425_D00052_04_Q_XXEN / 03.2019
ISOMETER® isoRW425
Insulation monitoring device for unearthed
IT AC-, AC/DC and DC systems (IT systems)
for railway applications up to 3(N)AC, AC/DC 440 V
Software version: D0418 V2.xx

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ISOMETER® isoRW425
i
Information!
Read the corresponding manual in addition to this quickstart.
Downloadable at: www.bender.de/en/service-support/downloads
Type of device Version Manual No. Art. No.
isoRW425-D4W-4 Push-wire terminal D00052 B71037000W
isoRW425-D4W-4 Screw-type terminal D00052 B91037000W
Mounting clip for screw fixing
(1 piece per device)
B98060008
Intended use
The ISOMETER® monitors the insulation resistance RF(R mode) or the insulation impedance ZF
(Z mode) of unearthed AC/DC main circuits (IT systems) with nominal system voltages of
3(N)AC, AC, AC/DC or DC 0 … 440 V. DC components existing in 3(N)AC, AC/DC systems do not in-
fluence the operating characteristics, when a minimum load current of DC 10 mA flows.
A separate supply voltage Usallows deenergised systems to be monitored as well. The maximum
permissible system leakage capacitance Ceis 300 μF in R mode and 1μF in Z mode.
Any use other than that described in this quickstart is regarded as improper.
i
To ensure that the ISOMETER® functions correctly, an internal resistance of ≤ 1 kΩ must exist
between L1/+ and L2/- via the source (e.g. the transformer) or the load.

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ISOMETER® isoRW425
Installation
93
45
67,5
36
31,1
47,5
74,5
2
2
All dimensions in mm
&2 x
1 x
100 107
Click
M4
M4
!
1.
2.
3. Click!
AB

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Wiring diagram
US
14
24
11
T/R
A
B
L1/+
KE A1 A2
14 24 11
K1 K2
E
T/R
isoRW425
L1/+
L2/-
Test / Reset
COM465IP
on
off
L2/
RS-485
E
PE
L1/+
L2/-
L3

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ISOMETER® isoRW425
Wiring diagram legend
Terminal Connections
A1, A2 Connection to the supply voltage Usvia a fuse:
If supplied from an IT system, both lines have
to be protected by a fuse.*
E, E, KE Connect each terminal separately to PE:
The same wire cross section as for „A1“, „A2“ is
to be used.
L1/+, L2/– Connection to the 3(N)AC, AC or DC system to
be monitored
T/R Connection for external combined test and re-
set button
11, 14 Connection to alarm relay „K1“
11, 24 Connection to alarm relay „K2“
A, B RS-485 communication interface with selecta-
ble terminating resistance
Example: Connection of a BMS-Ethernet-
Gateway COM465IP
i
* For UL applications:
Only use 60/75°C copper lines!
For UL and CSA applications, it is mandatory to use 5 A fuses for the protection of the supply
voltage Us.

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Menu overview
Menu item Parameter
AL Querying and setting response values
out Configuring fault memory, alarm relays and interface
tSetting delay times and self-test cycles
SEt Setting device control parameters
InF Querying software version
HiS Querying and clearing the history memory
ESC Going to the next higher menu level
Enter
oder
t > 5 Min.
k
R
Standardanzeige
R [kΩ]
C [µF]
U L1 L2 [ V]
UL1 [ V]
UL2 [ V]
R [ %]
U R [kΩ]
Messwertanzeige
Menü
Esc
Menüauswahl
AL
out
t
SEt
InF
HiS
ESC
Enter
Esc
Parameterauswahl
P1
. . .
Pn
ESC
Optionales Passwort
Parameter editieren
Parameter speichen
Enter
Enter
Enter
Esc
Funktion TasteBetätigung
Enter
Menü
Esc
Test
Reset
Auswahl, Eingabe bestätigen
Menü aufrufen
Menüpunkt verlassen
Gerätetest starten
Fehlerspeichen löschen
/ MENU Kurz
> 1,5 s
> 1,5 s
> 1,5 s
> 1,5 s
/ MENU
/ MENU
/ T
/ R

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ISOMETER® isoRW425
Display elements
Device front/display Function
ON AL1 AL2
TRMENU
ON
AL1
AL2
green - On
yellow - alarm
yellow - alarm
T
Up button
Test button (press > 1.5 s)
R
Down button
Reset button (press > 1.5 s)
MENU
ENTER
MENU button (press > 1.5 s)
+
test onoff MAdr
L1L2 C
<
>
s
kM %
Fµ
{
{
{
{
12 3
4
567
8
{
9
{
10
1U: Nominal system voltage Un
R: InsuIation resistance RF
C: System leakage capacitance Ce
2Monitored conductor
3= : Voltage type DC
: Disturbance-free measurment value update
~ : Voltage type AC
4Measured values and units
5Password protection is activated.
6In menu mode, the operating mode of the
respective alarm relay is displayed.
7Communication interface
With measured value: isoData operation
8The fault memory is activated.
9Condition symbols
10 Identification for response values and response value
violation

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Technical data
()* = Factory settings
Insulation coordination acc. to IEC 60664-1/IEC 60664-3
Rated voltage ...................................................................................................................................................................................440 V
Overvoltage category..............................................................................................................................................................................III
Supply voltage
Supply voltage Us.....................................................................................................................................AC 100…240 V/DC 24…240 V
Tolerance of Us....................................................................................................................................................................-30…+15 %
Frequency range Us..................................................................................................................................................................47…63 Hz
Power consumption............................................................................................................................................................≤ 3 W, ≤ 9 VA
Monitored IT system
Nominal system voltage Un.............................................................................................................. 3(N)AC, AC 0…440 V/DC 0…440 V
Nominal system voltage range Un(UL508) ....................................................................................................................AC/DC 0…400 V
Tolerance of Un.......................................................................................................................................................AC +15 %, DC + 10 %
Frequency range of Un.....................................................................................................................................................DC, 15…460 Hz
Response values
Response value Ran1 ...................................................................................................................................................2…990 kΩ (40 kΩ)*
Response value Ran2 ...................................................................................................................................................1…980 kΩ (10 kΩ)*
Relative uncertainty Ran..........................................................................................................................................±15 %, at least ±1 kΩ
Hysteresis Ran ...............................................................................................................................................................25 %, at least 1 kΩ
Response value Zan1.......................................................................................................................................................11…500 kΩ (off)*
Response value Zan2>...................................................................................................................................................10…490 kΩ (off)*
Relative uncertainty Zan......................................................................................................................................... ±15 %, at least ±1 kΩ
Hysteresis Zan ...............................................................................................................................................................25 %, at least 1 kΩ
Undervoltage detection U<...........................................................................................................................................10…499 V (off)*
Overvoltage detection U>..............................................................................................................................................11…500 V (off)*
Relative uncertainty U...............................................................................................................................................±5 %, at least ±5 V
Relative uncertainty depending on the frequency ≥ 400 Hz ................................................................................................ -0,015 %/Hz
Hysteresis U......................................................................................................................................................................5 %, at least 5 V
Time response
Response time tan at RF= 0.5 x Ran and Ce=1 μF acc. to IEC 61557-8 ................................................................................................≤ 10 s
Response time tan at ZF= 0,5 x Zan......................................................................................................................................................≤ 5 s
Start-up delay t..................................................................................................................................................................0…10 s (0 s)*
Response delay ton ..............................................................................................................................................................0…99 s (0 s)*
Delay on release toff ............................................................................................................................................................0…99 s (0 s)*
Interface
Interface/protocol ..............................................................................................................................RS-485/BMS, Modbus RTU, isoData
Baud rate ..........................................................................................BMS (9.6 kBit/s), Modbus RTU (selectable), isoData (115.2 kBits/s)
Cable length (9.6 kBits/s) .........................................................................................................................................................≤ 1,200 m
Cable: twisted pairs, shield connected to PE on one side ..........................................................................................min. J-Y(St)Y 2 x 0.6
Terminating resistor...............................................................................................................120 Ω (0.25 W), internal, can be connected
Device address, BMS bus, Modbus RTU ...................................................................................................................................3…90 (3)*

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ISOMETER® isoRW425
Connection
Connection type....................................................................................................................................screw-type or push-wire terminal
Screw-type terminals:
Nominal current..............................................................................................................................................................................≤ 10 A
Tightening torque........................................................................................................................................... 0.5…0.6 Nm (5…7 lb-in)
Conductor sizes .......................................................................................................................................................................AWG 24-12
Stripping length................................................................................................................................................................................8 mm
Rigid/flexible .....................................................................................................................................................................0.2…2.5 mm²
Flexible with ferrules with/without plastic sleeve ...........................................................................................................0.25…2.5 mm²
Multi-conductor rigid..........................................................................................................................................................0.2…1.5 mm²
Multi-conductor flexible.....................................................................................................................................................0.2…1.5 mm²
Multi-conductor flexible with ferrules without plastic sleeve...........................................................................................0.25…1.5 mm²
Multi-conductor flexible with TWIN ferrules with plastic sleeve.......................................................................................0.25…1.5 mm²
Push-wire terminals:
Nominal current..............................................................................................................................................................................≤ 10 A
Conductor sizes .......................................................................................................................................................................AWG 24-14
Stripping length..............................................................................................................................................................................10 mm
Rigid ..................................................................................................................................................................................0.2…2.5 mm²
Flexible without ferrules.................................................................................................................................................. 0.75…2.5 mm²
Flexible with ferrules with/without plastic sleeve .......................................................................................................... 0.25…2.5 mm²
Multi-conductor flexible with TWIN ferrules with plastic sleeve........................................................................................0.5…1.5 mm²
Opening force .....................................................................................................................................................................................50 N
Test opening, diameter..................................................................................................................................................................2.1 mm
Other
Operating mode .........................................................................................................................................................continous operation
Mounting .................................................................................................................................cooling slots must be ventilated vertically
Degree of protection, built-in components (DIN EN 60529) ...............................................................................................................IP30
Degree of protection, terminals (DIN EN 60529) ................................................................................................................................IP20
Standards, approvals and certifications
The ISOMETER® has been developed in compliance with the following standards:
• DIN EN 61557-8 (VDE 0413-8): 2015-12/Ber1: 2016-12
• IEC 61557-8 -8: 2014/COR1: 2016

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ISOMETER® isoRW425

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Nachdruck und Vervielfältigung
nur mit Genehmigung des Herausgebers.
Bender GmbH & Co. KG
Postfach 1161 • 35301 Grünberg • Deutschland
Londorfer Str. 65 • 35305 Grünberg • Deutschland
Tel.: [phone] • Fax: [phone]
E-Mail: [email protected] • www.bender.de
All rights reserved.
Reprinting and duplicating
only with permission of the publisher.
Bender GmbH & Co. KG
PO Box 1161 • 35301 Gruenberg • Germany
Londorfer Str. 65 • 35305 Gruenberg • Germany
Tel.: [phone] • Fax: [phone]
E-Mail: [email protected] • www.bender.de
isoRW425_D00052_04_Q_XXEN / 03.2019/ pdf / © Bender GmbH & Co. KG, Germany – Subject to change!The specified standards take into account the edition valid until 03/2019 unless otherwise indicated.