Hybrid Charger – Power Supply

Supply of the Hybrid-Charger Power Electronic

The VS-Generator system includes a power electronic component for energy conversion from three phase AC to DC. This power converter is the »Hybrid-Charger«.

The power supply lines of the Hybrid-Charger are connected to the terminal block, boost relay / DC-PMGI plus and minus on the »fpControl Connection Board – Generator« (fpControl CB-G).

»fpControl Connection Board – Generator« (fpControl CB-G) with marked connector X8 for boost relay or DC power supply inverter
»fpControl Connection Board – Generator« (fpControl CB-G) with marked connector X8 for boost relay or DC power supply inverter

The supply voltage on the terminal block output will be controlled by the Generator Control »fpControl Generator Control – Servo« (fpControl GC-S). The Generator Control controls the supply of the Hybrid-Charger in most efficient way.


If there is an error message or an emergency stop signal, the hybrid charger is always switched off. This is independent of the menu setting.

Automatic supply

In normal operation the fpControl switches on the Hybrid-Charger for 30 seconds after system start. In this time a system check and a check for updates are performed.

If the generator system remains in standby mode and the motor does not start, the Generator Control switches off the Hybrid-Charger supply after 30 seconds. At a motor start command the Hybrid-Charger will be switched on immediately.


Switching on supply manually

In some cases, for example, service or configuration of the converter, the Hybrid-Charger should be on continuously. In this case the supply can be switched on manually by the
»fpControl Control Panel – Generator« (fpControl CP-G). The Hybrid Charger supply remains in on mode until the next system start. After a restart of the Generator Control the FP-Control takes over the control of the power supply again.

The following converter menu is only displayed if a VS-Generator type is selected (Generator type codes 3000 – 3999).

Function call

Panel menu: converter > power supply > turn on / off.

Step by step guide
  • Open menu item »converter«.
  • Select »power supply«.
  • Select »on« to switch on / »off« to switch off the power supply and confirm.
  • Select »confirm«.
  • Result: The power supply is switched on manually.