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Quickstart
Neutral Grounding Resistor Monitor
Intended use
The NGRM700 is only intended for use in high-resistance earthed sys-
tems. In these systems, the NGRM700 monitors
the current through the NGR,
the voltage between the star point of the transformer and earth
(voltage drop across the NGR),
the condition of the neutral grounding resistor (NGR),
line-to-line and line-to-earth voltages.
This quick-start guide does not replace the operating manual of the device.
Download: www.bender.de/manuals
Safety instructions
Removing FP200-NGRM
Connection X1
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.
I1 Pulser IN
I2 Reset IN
I3 Test IN
A Modbus RTU (A)
B Modbus RTU (B)
Ground
M+ Analogue output
Q2 Open Collector: Pulser OUT
Q1 Open Collector: System health
+ Output for supply of external relays (+24 V, max. 100 mA)
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