Appendices
Appendix 1. Troubleshooting
ATTENTION!
Before you start any action, you need to check whether the grounding is properly
connected.
ATTENTION!
If any abnormal situation not described in this section occurs, please contact tech-
nical support. Do not attempt to open or repair the Resilient Power Control Module (RPCM)
yourself. Repairs should be carried out only by a service engineer.
ATTENTION! Only for service engineers.
During servicing, both power cords must be discon-
nected, dangerous voltage remains on the device when only one power cord is disconnected.
Malfunctions on inputs
Possible malfunctions during power-up are listed in Table A1.1.
Table A1.1. Power failure.
Name of the characteristic
Recommended actions
The device does not turn on, the
indicators do not light up.
Check the following parameters: the enclosure is not dam-
aged, fluid has not entered the enclosure and there are no
other violations; climatic parameters: temperature and hu-
midity; proper connection of RPCM to the power supply, elec-
trical parameters are within allowed range.
The device is on, one of the input
indicators light in red.
Check for correct power connection, voltage according to the
technical specifications on the relevant input.
The device is on, one or both of
the inputs blink yellow.
Check that the grounding connection is correct
The device is on, the indicators
are continuously lit in yellow
(one or both of the inputs).
The voltage of the input is out of the specified limits. Check
that the power supply is in accordance with section
325
