Bender ISOMETER iso1685FR, Manual

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Installation, connection and commissioning
28 iso1685FR(M)_D00002_02_M_XXEN/06.2017
5.2.5 Step-by-step connection of the iso1685FRM ISOMETER®
Connect the device with the help of the connection and terminal diagram. Proceed as follows:
1. Connect terminal E and KE to earth (PE)
2. BMS: Connect terminal A and B to the BMS bus
OR
Modbus RTUConnect terminal A to terminal (Y)DATA+ and terminal B to terminal (G)DATA- of the Mod-
bus analog converter
3. When using the Modbus RTU interface:
"RS485 Term." switchSet (RS485-Terminierung) to "On".
4. Connect terminal L1/+ to the N conductor (neutral point) of the system to be monitored
5. Connect terminal L2/- to L1' (300 V tap) of the system to be monitored
6. Connect terminal A1/A2 to DC 24 V
7. Connect the signal outputs 11/12/14 and 21/22/24 (Insulation fault alarm for the active and passive
methods) and 31/32/34 (device error) for external signalling. The relay outputs 11/12/14 and 21/22/24
are implemented redundantly.
5.3 Commissioning
Refer to "chapter 7.1.2 Parameter description" for further information concerning device parameterization.
The coupling terminals L1/+ and L2/– are locked. To unplug the terminals, the orange sliders
must be slid towards the front (towards the device) to unlock the terminal. Now the terminal
can be unplugged.
The ISOMETER® must be switched on after or simultaneously with the Modbus analog con-
verter.