Permanent-Field Synchronous Motors - Siemens SINAMICS S150 Operating Instructions Manual

Function diagram
FP 6060
FP 6630
FP 6640
7.4.6

Permanent-field synchronous motors

Description
Permanent-field synchronous motors that are equipped with a position encoder or a pulse
encoder with zero mark are supported.
Permanent-field synchronous motors without encoders are also supported for operation
without encoders. Controlled operation is not possible when the motor is stationary.
Typical applications include direct drives with torque motors which are characterized by high
torque at low speeds, e.g. Siemens complete torque motors from the 1FW3 series. When
these drives are used, gear units and mechanical parts subject to wear can be dispensed
with if the application allows this.
As soon as the motor starts to rotate, a voltage is generated. When work is carried out on
the converter, the motor must be safely disconnected. If this is not possible, the motor must
be locked by a holding brake, for example.
Features
● Field weakening of up to approx. 1.2 x rated speed (depending on the supply voltage of
● Flying restart (during operation without encoders, only when a VSM module is used to
● Speed and torque control vector
● V/f control for diagnostics vector
● Motor identification
● Automatic rotary transducer adjustment (calibration of the encoder's zero position, not for
● Speed controller optimization (rotary measurement)
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
Torque setpoint
Upper/lower torque limit
Current/power/torque limits
WARNING
the converter and motor data; (see also supplementary conditions)
record the motor speed and phase angle (option K51))
operation without encoders)
Setpoint channel and closed-loop control
7.4 Vector speed/torque control with/without encoder
291