Siemens sinamics G120 Operating Instructions Manual page 47

Some restrictions apply for operation:
Table 3- 6
Property
Power Module
Firmware
Applications
Speed of the motor
Switching on when motor
is rotating
Safety Integrated
Ambient temperature of
motor
Multi-motor drive
A multi-motor drive, i.e. simultaneously operating several motors connected to one inverter,
is permissible for standard induction motors in installations according to IEC.
Further information is provided in the Internet:
Multi-motor drive (http://support.automation.siemens.com/WW/view/en/84049346)
For installations in compliance with UL, multi-motor drive operation is not permissible.
Converter with CU250S-2 Control Unit
Operating Instructions, 01/2016, FW V4.7 SP6, A5E31759476B AE
Restrictions for operation with encoderless synchronous motors
Restriction
PM240-2
Firmware version ≥ FW V4.7
Suitable for applications for steady-state operation in the range of the
rated motor speed:
Conveyor drives
•
Pumps
•
Fans
•
Speed ≤ rated motor speed
•
Operation is not permitted in field weakening.
In steady-state operation ≥ 15% of the rated speed.
•
For accelerating and reversing functions, speeds 0 ... 15% of the rat-
ed speed are permitted.
The "flying restart" function is not possible.
From the safety functions integrated in the drive, only the Safe Torque
Off (STO), Safe Brake Control (SBC)andSafe Stop 1 (SS1)basic func-
tions are permissible.
≤ 40° C
The inverter monitors the motor using a temperature model. The tem-
perature 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.
3.5 Motor series that are supported
Description
47