Approved Devices - BONFIGLIOLI Vectron ACTIVE CUBE Applications Manual

Warning! Dangerous voltage!
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 the motor control is deactivated 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 machine must always be discon-
nected from mains supply (main switch). This must be documented on the machine.
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.
Permanent magnet synchronous motors (PMSM) must be operated only up to the
synchronous speed. PMSM cannot be operated above the synchronous speed be-
cause the trigger of the STO function can lead to the destruction of the power stage.
3.1

Approved Devices

All ACU devices of sizes 1 to 7 are approved for applications with functional safety according to this
manual.
For ACU of size 8 the certification of the function "Safe Torque Off" is in preparation.
The information of the size you can refer to the operating manual and the Quick Start Guide.
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ACU-STOV1-01SV2-04 en
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