Webasto PosiCharge DVS Field Service Manual page 18

DVS/GSE
the batteries based on the use level. See the "BMID Programming and Advanced
Features Manual" for reprogramming instructions.
O)
Flooded lead acid batteries must be watered as part of a regular maintenance schedule.
Insufficient watering will result in reduced capacity, overheating and reduced life.
Consult your battery manufacturer's guidelines for a watering schedule and proper
procedures.
P)
Loose battery interconnects or power cables increase the resistance of the pack and can
cause overheating and/or slow charging. Using insulated gloves and tools, check the
torque on all bolted interconnects and power cables, and verify that welded interconnects
have not loosened.
Q)
Tighten all screws and fasteners as needed.
R)
Check for opens in the charge path (contactors, output cables). Check Power Station
Control Board connectors P12 (Output Voltage Sense) and P15 (To Contactors). Check
that all wire crimps are secure.
S)
Shut down the unit and check for shorts or problems in the output cable. Check current
sensors and check their harnesses P11/P12 for continuity.
T)
Undercurrent faults may be caused by a loose connection or faulty contactor in the high
current path. The fault indicates a 15A discrepancy between the current requested and the
current delivered. Check the DVS current sensors, verify that the DVS contactors are
closing and check for loose connections. If the DVS contactors are not closing replace
the PowerStation control board, WCSI part # 08067.
U)
Indicates that the 150V DC Buss dropped below 100V or exceeded 200V. Check the
utility power for spikes and periodic phase drops. Faults may be caused by excessive
heat. Check any blockages of the Power Supply cabinet air inlets/outlets and clean the
rectifier fins.
V)
Current sensor faults may be caused by a poor connection or faulty cable. Check all
connections to current sensor carefully before replacing a current sensor.
W)
Indicates that the 150V DC Buss dropped below 110V or rose above 170V creating a
continuous error for 10 seconds.
X)
If there is no sign of excessive heat, a temperature fault may indicate a faulty temperature
switch. In this case, check for normal operation of temperature switches.
Y)
Check to make sure battery pack voltage is normal and that BMID is programmed
correctly. Check to make sure that your battery pack is properly wired to the output
connector, and that there are no shorted or damaged cells. Check that connector P12 on
the PowerStation cabinet control board is properly seated and that all pins are making
contact. A low VDC fault indicates less than 10V has been sensed by the charger. A
High VDC fault indicates greater than 150V has been sensed by the charger.
USE EXTREME CAUTION WHEN TROUBLESHOOTING the DVS WITH
ANY PANEL REMOVED. ELECTRIC SHOCK CAN KILL: Touching live
electrical parts can cause fatal shocks or severe burns. The input power circuitry and
internal circuits are live whenever input power is on.
DANGER
09030-78B
GSE
Webasto Charging Systems, Inc.
18 49
of
DVS
Field Service Manual