Description
3.3 Technical features and system requirements for built-in motors
SIMOTICS M-1FE2 built-in motors
Hardware Installation Manual, 04/2020, A5E50074509B AA
39
Option 2: Connection of each partial winding to its own (small) power section and operation
of the (complete) motor using a master-slave closed-loop control to a CU/NCU (e.g.
operation of 1FE218☐ motors with rated current I
N
> 200 A on booksize power sections) (see
following table).
Operating modes for
1. Operation on a chassis power section without
VPM module
2. Parallel circuit on two booksize power sections
Operation on two booksize power sections with
two VPM modules
Motors with rated current > 200 A
Note
Option 2 allows individual power sections to be dep
loyed whose current/power data lies
below the current/power data of the complete motor.
Note
The motor cannot be operated on a pure parallel circuit for SINAMICS booksize power
sections or with only on
e partial winding system.
Possible variants of the master-slave closed-loop control:
Deployment of "SERVCOUP" OA software
Application created by the user
Encoder evaluation on the master, encoder in-
formation is forwarded internally to the slave via
The encoder information must be made available
to the master and slave (encoder switch neces-
The OA software ensures the correct cur-
rent/torque distribution in the motor
The user application must ensure the uniform
current/torque distribution in the motor
The OA software ensures the mutual error moni-
toring for the master and slave
The user application must ensure the correct fault
response within the master-slave unit
Both procedures are described in the following chapters.
-slave layout (each partial winding connected to its own power section),
operation with only one winding system or an asymme
tric current distribution between
master and slave is not envisaged or excluded by the customer. This is true not only for the
commissioning phase but also for
any emergency operation with only one winding.
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