Tandem Operation; Speed Limits For Converter Operation - Siemens SIMOTICS SD 1LE5 Operating Instructions Manual

Preparing for use
4.13 Converter operation
NOTICE
Bearing damage
Bearing currents can flow if the coupling between the motors of the tandem drive is not
insulated. This can damage the DE bearings of both motors.
• Use an insulated coupling to couple the motors.
4.13.5

Tandem operation

If you connect two motors in series in "tandem operation", locate a coupling between the
motors; this coupling should satisfy the Directive 2014/34/EU or the regulations that apply in
the country where the equipment is installed.
4.13.6

Speed limits for converter operation

Observe the information on the rating plate regarding the speed limits for converter
operation.
44
1LE5, 1PC4 shaft height 315/355
Operating Instructions, 10/2020, A5E41454666A