User manual

Page - 16/89 AE9ZP0BD - DUALAC2/&HP/POWER - User Manual
After operation, even with the Key Switch open, the internal capacitors may
remain charged for some time. For safe operation, we recommend that the
battery is disconnected, and a short circuit is made between Battery
Positive and Battery Negative power terminals of the inverter using a
Resistor between 10 ohm and 100 ohm.
4.2.1 Positioning and cooling of the controller
- Install the inverter with the base-plate on a flat metallic surface that is clean
and unpainted.
- Apply a light layer of thermo-conductive grease between the two surfaces to
permit better heat dissipation.
- Ensure that the wiring of the cable terminals and connectors is carried out
correctly.
- Fit transient suppression devices to the horn, solenoid valves, and contactors
not connected to the controller such as those for activating the pump motor.
- The heat generated by the power block must be dissipated. For this to be
possible, the compartment must be ventilated and the heat sink materials
ample.
- The heat sink material and system should be sized on the performance
requirement of the machine. Abnormal ambient air temperatures should be
considered. In situations where either ventilation is poor, or heat exchange is
difficult, forced air ventilation should be used.
- The thermal energy dissipated by the power block module varies and is
dependent on the current drawn and the duty cycle.
4.2.2 Wirings: power cables
- The power cables length must be as short as possible to minimize power
losses.
- They must be tightened on controller power posts with a Torque of 13-15
Nm.
- The DUALAC2 module should only be connected to a traction battery. Do not
use converters outputs or power supplies. For special applications please
contact the nearest Zapi Service Centre.
U Do not connect the controller to a battery with a nominal voltage different
than the value indicated on the controller label. A higher battery voltage
may cause power section failure. A lower voltage may prevent the logic
operating.
4.2.3 Wirings: CAN connections and possible interferences
4 CAN stands for Controller Area Network. It is a communication protocol for real
time control applications. CAN operates at data rate of up to 1 Megabits per
second.
It was invented by the German company Bosch to be used in the car industry to
permit communication among the various electronic modules of a vehicle,
connected as illustrated in this image: