Siemens SINAMICS G120D Operating Instructions Manual page 28

Description
3.3 Motors
Table 3- 5
Property
Revision level of inverter
Applications
Speed of the motor
Switching on when motor
is rotating
Safety Integrated
Ambient temperature of
motor
28
Constraints for operations using 1FK7 encoderless synchronous motors
Constraint
Revision level of power module ≥ B01
•
Firmware version of the control unit: ≥ FW V4.7
•
Suitable for applications using stationary operation in the range of the
rated speed of the motor :
Conveyor belts
•
Roller conveyors
•
Chain conveyors
•
Speed ≤ rated speed of the motor
•
Operation is not permitted in field weakening.
In stationary operation ≥ 15 % of the rated speed.
•
For accelerating and reversing functions, speeds 0 ... 15 % of the
rated speed are permitted.
The "flying restart" function is not possible.
Only "STO" is permitted by the safety functions integrated in the drive.
≤ 40 °C
The inverter monitors the motor through a temperature model. The
temperature model presumes an ambient temperature of 40°C.
In the case of higher ambient temperatures, the inverter will no longer be
able to provide sufficient protection for the motor. If you operate the
motor in ambient temperatures > 40 °C, you must reduce the power of
the motor sufficiently.
Information on temperature-dependent power de-rating can be found in
the motor manual.
Converter with control units CU240D-2
Operating Instructions, 04/2014, FW V4.7, A5E34262100B AA