VANNER
Incorporated
OWNER’S MANUAL
Vanner High Voltage DC-
DC Converter OWNER’S MANUAL
15
Testing and Troubleshooting
CAUTION
Servicing of electrical systems should only be performed by trained and qualified technical personnel.
Equipment Required
Required:
A laptop provisioned with Vanner's Dashboard software, supporting hardware and
interface cables.
Note
: There are kits available for purchase that include Vanner's Dashboard software, a USB to CAN
adapter module and a harness to connect to the vehicle's CAN network. Please contact Vanner's
inside sales department for the appropriate kit part number for your application.
Optional:
Volt Meter having 0.01 volt resolution. (Fluke Model 87 Multimeter recommended).
Clamp-on current meter (Fluke Model 36 Clamp-on Meter recommended).
Test Procedure for HBA
The HBA is working properly if:
1. The 24 volt DC loads are being operated continuously and are within the rated capacity of the HBA
and;
2. The power drawn from the hybrid drive train system is within its rated capacity.
HBA Test Procedure:
1. Field-test the HBA while fully connected to the vehicles high and low voltage batteries.
The 24V battery must measure between 16 and 32 volts. If the 24V battery is below 16 volts,
apply a 24 volt battery charger to the batteries.
The high voltage battery must measure between 500 and 780 volts for the HBA to start properly.
2. Start the vehicle normally while monitoring the HBA
status with a laptop provisioned with Vanner’s
Dashboard software. The laptop must be connected to the vehicle CAN Bus utilizing a USB to CAN
adapter and harness.
The HBA will turn on automatically upon receiving the engine RPM signal or CAN On/Off
command via CAN bus and a +24V enable signal.
Upon normal system startup, the output voltage will increase to 28.5 volts and the output current
will increase indicating charging of the 24V batteries and providing power for the 24V auxiliary
loads.
3. The Vanner Dashboard software monitors the following data which can be observed on the laptop;
High Input Voltage
High Input Current
Low Output Voltage
Low Output Current
Engine RPM
Heartbeat
Power Stage Temps.
Control Board Temp
CAN On/Off Command Message Status
Converter Status and Faults
