ORION ITALIA IPR-D, Instruction Manual

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Chapter 8: Troubleshooting
CURRENT PROTECTION RELAY - IPR-D Manual P/N: IPR-D GBM 01/09/2006 8.1
8. Troubleshooting
PROBLEM SOLUTION REFERENCE
The display does not turn on. 1. Check the power supply to the
auxiliary terminals.
2. Check that the power supply voltage
is the same as the one indicated on
the plate (on the back of the relay).
Wiring diagram
The display is “On” but no message is
displayed. 1. Check that the power supply voltage
is the same as the one indicated on
the plate (on the back of the relay).
Wiring diagram
Incorrect displaying of the ground
current reading. 1. Measure the current input in the
terminal of IPR-D by using a clamp
meter.
2. Check that the CT primary current
has been correctly entered and
stored in Setpoint Page 2.
3. Check the CT connections
Page 2 of Setpoint
Wiring diagram
The ground current is not displayed. 1. Check that the active ACTUAL
VALUES PAGE is the correct one.
Actual values 1