AEMZP0BA - EPS-AC0 - User Manual Page - 29/95
8.2 General suggestion
For a proper installation take care of the following recommendations:
U Never connect SCR low frequency chopper with AC Motor Inverter because
the Rail capacitors alter the SCR choppers' work. If it is necessary to use two
or more control units (e.g. traction + lift. + steering controller), they must
belong to the ZAPIMOS family.
U Do not connect the inverter to a battery with a nominal value different from the
value indicated on the controller plate. If the battery value is greater, the MOS
may fail; if it is lower, the control unit does not "power up".
U During battery charge, disconnect the controller from the battery.
U Supply the controller only with battery for traction; do not use a power supply.
U When the inverter is installed, simulate a steering alarm and verify that both
traction and electromechanical brake shall be de-energized in a very short
time.
U After the battery is disconnected, the Rail capacitor remains charged for some
minutes; if you need to work on the inverter, discharge them using a 10
Ω
÷
100
Ω
resistance connected from the +Batt to the –Batt terminals in the
controller side.
U Take care all the inductive devices in the truck (horn, solenoid valves, coils,
contactors) have a proper transient suppression device.
8.3 Connection cables
1) For the auxiliary circuits, use cables at least 0.5 mm² section.
2) For power connections to the motor and to the battery, use cables having
section of 4-6 mm² (as a minimum).
3) The power cables length must be as short as possible to minimize power
losses.
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