Installation manual

26 of 72
SIMPLEX Fault Assistance Guide RevA
29 April 2009
1.1.6 4100-0157A Battery Charger Faults
There are a number of Battery Charger Faults that can arise during the operational lifetime of a
panel. You may observe one of the following Faults;
Charger 2% out of range
Battery Charger Supply incorrect
To correctly measure the output voltage you will need to follow the steps below.
1. To prevent damage to the system, disconnect the batteries & power down the
system, disconnect the power & comms harnesses from the Power Supply.
2. Connect the Multimeter to the battery leads (with batteries disconnected), power
up & measure the voltage. Calculate the difference between the measured
voltage & 27.6v.
NOTE: After 90 seconds, the voltage will drop to <24v. If this happens,
power down & start again.
3. Connect the Multimeter to the A or B tap on TB2. Measure the voltage. Adjust the
trim-pot (refer to the Trimpot Location diagram found on Page 25) so the voltage
increases (or decreases) by the difference calculated in step 1.