Motortech VariStep3, Operating Manual

Page: 27 / 92

6 Wiring of the Device
Rev. 08/2018 27
6.1 Wiring Power Supply
Risk of injury!
The stepper motor may be started unintentionally when the supply voltage
is applied. Especially if a throttle is connected, there is a risk of fingers or
other body parts being trapped or squashed. Therefore, work on the
connected devices (throttle or gas mixer) must always be carried out with
disconnected supply voltage.
The power supply is wired using the 3-pole plug. In order to comply with the EMC requirements,
it is absolutely necessary that the earth contact is connected with a wire separate from the
negative pole (L -).
L
≙
18 V DC to 32 V DC (nominal voltage: 24 V DC)
Variations
1 Battery Generator Control Unit
2 Power supply
3 Battery Charger