Limit switches
Actuator 2
Open and Closed position via torque and limit switches
*) Start is only possible in the opposite direction after resetting the fault. The
torque signal has to disappear within 0.5 s otherwise a fault is generated again.
DI0: Preparation for Open limit motor off
DI1: Preparation for Closed limit motor off
DI3: • Motor off, start only in opposite direction
• Fault if not prepared*
Remark
• The limit switches Open or Closed prepare the stop. Torque
Open or Closed stops the motor. Starting is only possible in
the opposite direction.
• The single torque signals in the telegram - torque Open or
torque Closed - are calculated based on the direction of move-
ment before the stop.
• If after powering up a torque signal is detected and neither an
Open nor a Closed limit is present it is presumed that the
torque occurred during closing. The start is possible only af-
ter fault acknowledgement and only in the opposite direction.
Actuator 3
Open position via limit switch only, Closed position via torque
and limit switches
DI0: Motor off, start only in Closed direction
DI1: Preparation for Closed limit off
DI3: • Motor off if prepared for Closed limit motor off, start
onlyin Open direction
• Fault if not prepared*
Remark
• The limit switch Open prepares the stop. Torque Open stops
the motor. Starting is only possible in the opposite direction
• The single torque signals in the telegram - torque open or
torque closed - are calculated based on the direction of move-
ment before the stop.
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