9
05.01
9.11 Induction motor operation 611A (611D/611U)
9-292
 Siemens AG 2001 All rights reserved
SIMODRIVE 611 Planning Guide (PJU) – 05.01 Edition
Parallel operation of several induction motors and changeover of individual
induction motors for SIMODRIVE 611 digital/SIMODRIVE 611 universal, refer
to the separate configuring and documentation, SIMODRIVE 611 digital/
SIMODRIVE 611 universal.
Note
The 611 digital control module allows two different induction motors to be chan-
ged over via the motor parameter sets.
Individual thermal monitoring functions must be provided for overload protection
of the individual induction motors. We recommended that PTC temperature
sensors are used in the motor and the 3RN1 thermistor motor protection
evaluation units.
If cable protection is required for the motor cables, for rated drive converter
currents which are significantly higher than the rated motor current, then this
must be implemented outside the drive converter.
Notice
Motors may only be changed over using the power contactors in the motor
circuit when terminal 663, pulse enable/start inhibit is inhibited. i.e. the motor
circuit must be in a no–current condition.
For an additional explanation, also refer to the circuit examples =10 in
Section 9.7
Induction motor
operation for 611
digital/universal
Overload
protection
9 Important Circuit Information
To Next Page
Loading...
