7 Commissioning
Operating Manual 90° ACTUSAFE CMF(S)QT
OM-ENGLISH-Failsafe-QT-16xx-V2.00-2022.03.01
CAUTION:
In electrical operation, it is not permissible for the mechanical end stop to be run into. After adjusting
the mechanical end stop, check the setting of the travel end position and correct it if necessary.
After completing the adjustment work, fix the locknuts back in place!
7.6
Adjusting of Failsafe speed
General:
Schiebel CM Failsafe actuators are equipped with an adjustable passive eddy current brake, through which it is possible to
change the Failsafe speed. When delivered, the Failsafe speed is set to minimum.
After mounting the actuator to a valve and after conducting a test run, the Failsafe speed can be increased if neces-
sary.
CAUTION:
Valve or piping equipment may be damaged, if the actuation speed is too high!
WARNING: All adjustment work may only be performed with the actuator disconnected from the power
supply. Due to this requirement, the actuator has to be in the Failsafe position! Any powering up must
be ruled out during maintenance!
WARNING: When working in potentially explosive areas, heed European Standards EN 60079-14 “In-
stalling Electrical Systems in Explosion Endangered Areas” and EN 60079-17 “Inspection and Mainte-
nance of Electrical Installations in Explosion Endangered Areas”.
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