TAVRIDA ELECTRIC Rec15/25 Al1 5p, User Manual, Page: 80 / 136

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7.1 Maintenance
The Rec15/25 is a maintenance free device. No regular maintenance operations are required during the
entire period of operation.
7.2 Troubleshooting
NOTE! In case the actions listed below do not help, contact your nearest Tavrida Electric representative.
WARNING! All replacement operations of the HV assembly equipment require power line de-energizing. All
necessary precautions (visible line gaps, temporary groundings etc.) should be applied.
PCI Connection Problems 7.2.1
NOTE! In case there are problems connecting to the device via the PCI interface check the following.
Possible reason Malfunction identification procedure Corrective action
RCM is shutdown
Check that secondary power supply switches are in
ON position
Check the voltage on power supply inputs of the RCM
The voltage shall be in the range 85-265 V. In case the voltage at the secondary power supply
inputs of the RCM is absent, find the reasons of the
malfunction similar to “Loss of auxiliary supply”
described in paragraph labeled Loss of AC supply
Improper connection to
Rec15/25 via PCI
Check the connection according to chapter 6.5.1 of
this guide
It is no malfunction
RCM malfunction
The most likely reason for malfunction in a control
cubicle if no other reason was identified.
Replace the RCM
CPM Malfunction 7.2.2
NOTE!
If it is possible to connect to the device via the PCI interface but the CPM doesn’t work properly,
check the following.
Possible reason Malfunction identification procedure Corrective action
Low or no contrast of the screen
Check if LEDs on the CPM are lit
Check if the screen lights but no readings are visible
Push the button “Contrast” several times till the
readings become clearly visible
It is no malfunction
The CPM mode is disabled via PCI
Download System settings from the RCM.
Check in section “Configuration” the CPM mode
The CPM mode is disabled if the check box is not ticked
Activate CPM mode via PCI
Improper connection of plugs
connecting the CPM and the RCM
Check the connection of the plug “1” and plug “19”
Provide reliable connection of the plugs
“1” and “19”
RCM malfunction
Connect new CPM via new wiring to the RCM
If the new CPM with new wiring doesn’t work properly
it is most likely a malfunction of the RCM
Replace the RCM
Malfunction of wiring connecting the
RCM and the CPM
If the new CPM with new wiring works properly, replace
the new wiring with the old one
If the new CPM doesn’t work properly with the old wiring
it is a wiring malfunction
Replace wiring
CPM malfunction
If the new CPM works properly with the old wiring it is
CPM malfunction
Replace the CPM