Page 3-68
LVD contactor has discon-
nected the battery.
Use
DCTools to c
heck LVD is
enabled and
set to correct values. (LVD status LED on
the I/O board is on when contactor is
energized.)
Check that the I/O board is connected
(Power LED is on).
Check that the LVD control and power
cables are connected.
Check the connections from the battery
bus to the LVD.
System has no battery
input
Battery fuse or MCB open.
Switch on the required battery fuse or
MCB(s).
LVD has disconnected
the battery.
Use
DCTools/Web to c
heck LVD is
enabled and set to correct values. (LVD
status LED on the I/O board is on when
LVD is connected.)
Check that the I/O board is connected
(Power LED is on).
Check that the LVD control and power
cables are connected. See
Connections on page
4
.
Check the connections from the
battery bus to the LVD.
Table 6 - Troubleshooting issues and actions: I/O board
Problem
Possible cause
Required action
I/O board Power/Comms
OK LED is off
I/O board is not powered or
faulty.
Check connection to YH3 on I/O board.
Replace I/O board if faulty.
I/O board Power/Comms
OK LED is flashing.
I/O board is responding to an
Identify
command from the
SC200.
None, this is normal operation.
Table 7 - Troubleshooting issues and actions: LVD
Problem
Possible cause
Required action
System has no DC output
Load fuse open.
Check for open fuse. (Rectifiers are on.)
Table 5 - Troubleshooting issues and actions: System DC
Problem
Possible cause
Required action