Method for monitoring the reversing process of electrically...

Details Method for monitoring the reversing process of electrically... Method for monitoring the reversing process of electrically...

2006-10-17

2006-10-17

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Motor-reversing

Automatic and/or with time-delay means

C318S280000, C318S469000, C318S434000, C049S026000, C049S028000

Reexamination Certificate

active

07122981

ABSTRACT:
The invention relates to a method for monitoring and controlling reversing actions in electrically actuatable units, wherein an actuating drive unit can exert an actuating force in order to move an electrically actuatable unit, and a safety circuit automatically switches off the actuating drive unit after a jamming switch-off time that is predetermined for a movement if no movement occurs despite the triggering of the actuating drive unit. According to the invention, a triggered reversing action results in a temporary extension of the predetermined jamming switch-off time from a short jamming switch-off time t1that is predetermined for normal operation to a longer jamming switch-off time t2(2).

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