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Operating Instructions ACU
09/08
Warning! Dangerous voltage!
The safety function “Safe Torque Off ” may only be used if mechanical
work is to be performed on the driven machines, not for work on live
components.
After disconnection of an external DC 24 V power supply, the DC link of
the frequency inverter is still connected to mains supply.
Even if power supply to the motor is disconnected, and the motor is
coasting to a standstill or has already stopped, high voltages may still
be present on the motor terminals.
Before working (e.g. maintenance) on live parts, the plant must always
be disconnected from mains supply (main switch). This must be docu-
mented on the plant.
When the function “Safe Torque Off ” is triggered, the motor is not
isolated from the DC link of the frequency inverter. High voltage levels
may be present at the motor.
Do not touch live terminals.
Operating Instructions ACU
09/08
14
Summary of Contents for Bonfiglioli Vectron ACTIVE CUBE ACU 201 Series
Page 1: ...ACTIVE CUBE Operating Instructions Frequency Inverter 230V 400V 0 25 kW 132 kW ...
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