Control circuit for an electrical printing-press drive motor...

Details Control circuit for an electrical printing-press drive motor... Control circuit for an electrical printing-press drive motor...

H - Electricity

02

P

341/109, 318/120

H02P 7/28 (2006.01) G05D 13/62 (2006.01) H02P 7/298 (2006.01)

Patent

CA 1289186

Summary Control Circuit for an Electrical Printing-Press Drive Motor or similar A control circuit for an electrical printing-press drive motor contains firstly a power control element containing semi-conductors for the drive of the motor in the first torque direction, and a second power con- trol element containing semi-conductors for drive of the motor in the other torque direction. A circuit breaker is installed in order at least in case of fail- ure of a respective power control element to electric- ally isolate such power control element from the rest of the circuit and in order to connect the rest of the circuit with the other power control element in place of the defective power control element. Downtimes in case of failure of a power control element can thus be reduced.

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