Servicing And Maintenance - Eaton EMR-3MP0 Installation, Operation And Maintenance Manual

9

Servicing and Maintenance

Within the scope of servicing and maintenance following checks of the EMR-3MP0
hardware have to be conducted:
Relay Outputs
Every 1‒4 years, depending on ambient conditions:
• Check the Relay Outputs via the test menu branches [Service / Test Mode (Prot
inhibit) / WARNING! Cont? / Force RO] / [Service / Test Mode (Prot inhibit) / WARNING!
Cont? / DISARMED], see
Digital Inputs
Every 1‒4 years, depending on ambient conditions:
• Supply a voltage to the Digital Inputs and check if the appropriate status signal
appears.
Current Plugs and Current Measurements
Every 1‒4 years, depending on ambient conditions:
• Supply a test current to the current measurement inputs and check the displayed
measured values from the EMR-3MP0.
Analog Outputs
Every 1‒4 years, depending on ambient conditions:
• Please check the Analog Outputs via via the test menu branches [Service / Test Mode
(Prot inhibit) / Force RO] / [Service / Test Mode (Prot inhibit) / DISARMED], see
"Service and Commissioning
Battery
In general the battery lasts more than 10 years. Exchange by Eaton.
Notice: The battery serves as buffering of the clock (real-time clock). There's no impact
on the functionality of the device if the battery breaks down, except for the buffering of
the clock while the unit is in de-energized condition.
• The device checks the battery as part of its Self-Supervision, therefore no dedicated
testing activities are required. If the battery is low, the System LED flashes red/
green, and an error code is generated (see Troubleshooting Guide).
Self-Supervision Contact
Every 1‒4 years, depending on ambient conditions:
• Switch off the auxiliary supply of the unit. Then the Self-Supervision Contact must
drop out. Switch on the auxiliary supply again.
EMR-3MP0
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