Manual

Generator Failure
1. The motor turns not strongly rather weak:
The actuator has shorts in the winding and must be changed. (pay attention that the generator is not overloaded
anymore.)
2. The actuator does not move but the spindle can be turned manually. Disconnect the plug of the actuator. Connect
provisional an external voltage source 12V-DC to the motor.
The actuator don’t turns with the external voltage source. The actuator is defect and have to be changed.
The control must be inspected by the following steps if the actuator turns and works faultless with the external
voltage source:
1. Check the fuse on the VCS printed circuit board.
2. Check if the sense voltage is wired to the VCS printed circuit board.
3. Check if the VCS supply voltage is wired to the VCS.
4. Check if the VCS outlet signal for the actuator is wired.
Change the VCS printed circuit board if the points above carries no clearance.
7.4.4.4 The mechanical voltage limitation must be checked regularly. The following steps
have to be done:
1. Disconnect the plug of the actuator.
2. Switch off all consumers.
3. Connect an electrical voltmeter.
4. Start the generator.
5. Turn the actuator manually to the lower limit stop point.
6. The voltage must be 220V.
7. Turn the actuator manually to the upper limit stop point. The max. voltage is 270V.
8. A new adjustment is necessary in case of deviants.
7.5 Low Generator-Output Voltage
If the produced alternating voltage is too low, switch the consumers off, in order to relieve the generator. Mostly the
problem already solved. If the output voltage is still too low, even if all consumers are switched off, the generator
runs without load, you can assume one or more condensers are defective.
7.6 Testing generator stator windings
7.6.1 Checking the generator voltage
In order to test, whether the fixed winding produces enough voltage, proceed in such a way:
1. Guarantee that the connection to the electrical system is interrupted.
2. Remove all conductions in the power terminal box of the generator.
3. Starter battery must be connected with the generator.
4. Start the generator start.
5. Measure with a voltmeter the voltage between the phase(s) and N. If the measured values are under the substantially
values in Table 9.4-5, “Voltage values stator coil,” on Page 200, a coil damage is to be accepted.
During the measurement in the 60Hz version both partial coils must be interconnected, i.e. a connection must be
provided between line 1 and line 3. (see wiring diagram)
Seite/Page 122 Panda_4000s_PMS_SCB_FCB_eng.R04 - Kapitel/Chapter 7: Generator Failure 7.5.12