KEB COMBIVERT F6 Instructions For Use Manual - Danger
3.6
General specifications
3.6.1 Machine safety
The functional safety and stop categories "Safe Torque Off (STO)" are integrated into
the cabinet system. These allow an optimum adaptation of the drive to the required
safety category for the machine. The function "Safe torque off" switches off the control
voltage for the power semiconductors and prevents by way that the drive converter gen-
erates the AC voltage required to turn the motor. Furthermore, the function "prevention
of unexpected start-up" according to EN 1037 is fulfilled.
The safety function corresponds to the requirements in accordance with Perfor-
mance-level „e" (EN ISO 13849-1) and SIL 3 (EN 61508-1...7 and EN 62061). The
safety function protects staff from damage, provided that projecting, installation and
operation are performed properly.
DANGEr
The STO function does not switch off the voltage supply of the cabinet
system.
Maintenance of electrical parts of the cabinet system or the motor may
only be carried out after the disconnection of the cabinet system from
the voltage supply.
ATTENTION
If the drive converter is stopped by the "Safe torque off" function during
operation, it disconnects the voltage supply of the motor and the motor
coasts down.
Information on the F6 control boards can be found here.
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FUNcTIONAL OVErVIEW