Service Manual
rev 5.0 with software Ind1V022
The overload protection protects both the supply and the motor cables. The fuses of the supply provide
short circuit protection.
- If necessary, open the control box cover and adjust the SSU settings.
- Turn on power from main switch and control voltage switch.
8 START-UP PROCEDURE
If any problems or malfunctions occur during the start-up, refer to Chapter “Troubleshooting”, to find out the
reason. All problems must be solved before continuing.
Warning! High voltages inside device. Wait for at least five minutes after the supply voltage has
been switched off before service actions. Display in operating condition (lights on) indicates a
dangerous voltage on the DC-bus. When display turns off, the DC-bus voltage is about 100V.
Note also that there is a dangerous voltage in the braking resistor always when the DC-bus is
charged.
Do not connect any voltage to the output terminals (U, V, W). Otherwise, the inverter will be damaged.
8.1 Visual
checks
- Check condition of cubicles.
- Check that D2L serial number is the same as in delivery documents.
- Check the switch settings on SSU (see Chapter “Speed Supervision Settings”)
- Check the cabling to braking resistor.
- Check the cabling to motor, brake, thermistors and speed sensor.
- Check the wire terminations in the motor connection box
- Check connections for motor, thermistors, brake wear and speed sensor circuits.
- Disconnect motor (U, V, W) and brake cables to prevent damage of inverter. Measure isolation resistance
of brake coil and motor windings (each phase to ground).
- Re-connect motor and brake cables.
- Check braking resistor(s).
- Terminals X1:21-27 and X1:51-57 are for electronics level signals.
- Normally only shielded wires are connected to these terminals. Check that no control or line voltage level
wires are connected there.
8.2 Checks before the first test run
- Check power supply voltage (nominal v/- 10%).
- Check control voltage (nominal v/- 10%).
- Make sure that run commands are off (pushbuttons / controller (master switch) at zero position).
- Within about 1 second the control panel should display "AC on", and then in about 1 second the display
changes to motor output frequency "0.00" and green READY status indicator turns on.
- In a fault situation the red FAULT status indicator blinks and the display shows a fault code instead of
frequency.
- Check that green RUN status indicator is off.
- Parameters are properly set after factory tests and no adjustments are needed except for the parameters
that depend on application. Write down to the parameter list all the values that have been changed and at
the end save parameters to User parameters, see chapter “User parameters”.
- Check motor type.
- Check that external connections and selected control method are according to application.
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Drivecon Inc. reserves the right to alter or amend the above information without notice.
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