Installation Instructions
Panda PMS AGT-DC 4000 - Chapter D: Installation Instructions Page 67
D.10 Voltage controller
With a engine-operated generator set count always on the fact that through disturbances at the
controlling of the diesel engine the control of the number of revolutions monitoring is lost. In this
case the diesel engine could wind up without limitation and produce a voltage, which becomes
substantially larger than the electrical load can process. This can destroy very expensive items of
equipment. It must be take for granted that for the protection of the electrical load a voltage con-
troller with isolating relays is used for a solid installation. The appropriate accessory components
are available at Icemaster.
If it is about a duo combination generator, the voltage control for both output parts (single phase
AC and three-phase AC) should be planned.
At different PANDA generators a voltage control is integrated. This voltage control affects only
the diesel engine. If the rated voltage exceed approx. 15%, this voltage control is activated, as
the diesel engine is turned off. This is only possible with the delay of some seconds, load could
be damaged in the meantime. The only safe method for the protection of the electrical devices is
the installation of an external voltage controller with separation contactor.
We recommend this measure with all reproduction and point out also that the generator manufac-
turer is not responsible for damage, which are caused by overvoltage at external devices.
Protect your valuable devices by an external voltage controller!
Position of the external voltage controller
Reasonable the external voltage controller is mounted in such a way it works not only for the
generator but for all AC voltage supplies in the electrical system, also for shore power and inver-
ter. In these cases usually a selector switch is intended, which can be determined, which voltage
supply is switched to the electrical system. The voltage conteroller must be installed at the exit of
the selector switch, thus in the electrical system.
D.10.1 Adjustment of the rated voltage
The voltage controller must be ordered for the appropriate rated voltage (12, 24, 32, 48, 42 V
DC). Other voltage on request.
Changing between these voltages is not possible.
D.10.2 Functional decription of the voltage controller
The voltage controller has 3 different adjustment possibilities:
upper switching point, lower switching point and time lag of the generator.
In factory setting the voltage controller is in the following attitude:
a. upper switching point (disconnection) 13.6V
b. lower switching point (insertion) 11.52V
