Installation Instructions
11.3.11
Panda PMS 8.000 NE - 42 NE Manual.R05 - Kapitel/Chapter 5: Installation Instructions Seite/Page 87
5.9.4 VCS voltage control
All Panda generators from Panda 8000 upwards are fitted with the electronic voltage control "VCS" as standard.
The VCS controls the generator voltage and motor speed. A actuator on the injection pump can increase the engine
speed by up to 8%.
If the generator is run without load, the voltage should be 231V with a frequency of approx 48.5 to 49Hz. The fre-
quency (equates to the speed) can be increased by up to 8%. This ensures that the engine speed is increased when
there is an extra load. The maximum speed is achieved when 80% load is reached.
The speed gauge is governed by an adjusting screw, above and below. Adjustment of this screw may not occur wit-
hout the expressive approval of the manufacturer.
All signals pass through the circuit board in the AC-Control box. The signal impulse for the actuator is passed to the
electric motor by means of the 5 core wire.
The generator maintains its full capability if the VCS has a defect.
In this case the base current must be raised to at least 240 V by adjusting the minimum setting on the speed gauge,
in order to ensure that the generator output voltage at 70% nominal load does not drop below 215 V.
Fig. 5.9.4-1: VCS Control
1
6
5
4
2
3
7
1. Connection measuring voltage
2. Adjusting booster voltage (do not adjust!)
3. Adjustment VCS-voltage
4. Connection VCS inlet
5. Electrical fuse (1.6 A, slow to blow)
6. Potentiometer for booster time
7. Connection for PC
