GE Multilin G650, Manual

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GEK-113285A G650 Generator Protection & Control System 12-1
12 G650TROUBLESHOOTING GUIDE 12.1 SYMPTOMS AND RECOMMENDED ACTIONS
12
12 G650TROUBLESHOOTING GUIDE 12.1SYMPTOMS AND RECOMMENDED ACTIONS
G650 units have been designed and verified using the most advanced and reliable equipment. Mounting and
testing automation ensure a high consistency of the final product. Before sending a unit back to the factory, we
strongly recommend you follow the recommendations below. Even if it will not always solve the problem, at least
they will help define it better for a quicker repair.
If you need to send a unit back to the factory for repair, please use the appropriate RETURN MATERIAL AUTHORIZATION
process, and follow the shipping instructions provided by our Service Department, especially in the case of international
shipments. This will lead to a faster and efficient solution of your problem.
CATEGORY SYMPTOM POSSIBLE CAUSE RECOMMENDED ACTION
Protection The relay does not trip -Function not permitted
- Function blocked
- Output not assigned
-Set the function permission to
ENABLED
-Check Protection units block screen
-Program the output to the desired
function using ENERVISTA 650 Setup
logic configuration
General When feeding the unit,
no indicator is lit up
-Insufficient power supply
- Wrong versions
-Fuse failure
- Loose fuse
-Incorrect wiring
-Verify the voltage level using a
multimeter in the power supply
terminals, and check that it is within
the model range
-Check relay and ENERVISTA 650
Setup versions are the same
-Remove power supply, dismount the
power supply module and replace the
fuse
-Same as above with same fuse
-Make sure that terminals l
and – are connected to the 9-pin
connector corresponding to the power
source
Communication The relay does not
communicate via the
front RS232 port
-Incorrect cable
-Damaged cable
-Relay or PC not grounded
-Incorrect baudrate, port, address, etc.
-Make sure you are using a straight
cable
-Replace the cable
-Ensure ground connection
-Test other ports, other baudrates, etc.
Make sure that the communication
parameters in the computer match the
ones in the relay.
General After Updating the
firmware the relay
does not start up and
always shows the
message “Os
Loading…”.
Check that the bootware version
match with the firmware version
-If there is an incompatibility between
boot and firmware version, update to
the corresponding boot and after that
update the firmware version
-If the boot and firmware versions are
correct, perform the firmware update
procedure again.