Special Case Of A Parallel Connection - Siemens Sinamics s120 Commissioning Manual

Commissioning
3.13 Commissioning of SIMOTICS L-1FN3 linear motors
3.13.7

Special case of a parallel connection

Note
Parallel connection
Only linear motors with the same "primary section format", the same "winding type" and the
same "air gap" may be switched in parallel.
The article numbers of the primary sections 1FN3...-....0-0☐A1 may differ only by the
placeholder shown as "⃞".
For more information and connection diagrams, refer to the "SIMOTICS L-1FN3 linear
motors" Configuration Manual in Chapter "Parallel connection of motors".
The following requirements must be met in order to operate several linear motors in parallel
on a SINAMICS Motor Module:
● The motors must be arranged according to the data in the "SIMOTICS L-1FN3 linear
motors" Configuration Manual.
● The travel direction of the parallel-connected motors must match the details in the
"SIMOTICS L-1FN3 linear motors" Configuration Manual. For a Janus arrangement,
when connecting the stoker, phases V and W must be interchanged so that the stoker
has the same travel direction as the master, also refer to the "SIMOTICS L-1FN3 linear
motors" Configuration Manual, Chapter "Parallel connection of motors".
● Ensure the position of the EMF voltages of the parallel-connected motors as described in
Chapter "Checking the angular commutation with an oscilloscope (Page 206)"; it is
imperative that you check these carefully. Maintain the maximum deviation of the phase
angle between the EMF voltages of the motors according to Chapter "Checking the
angular commutation offset with an oscilloscope". You may only connect the motors to
the converter after the deviation of the commutation angle for all of the motors to be
connected in parallel lies within the limit value.
● Before commissioning and switching-on the DC voltage for the first time, note that the
temperature monitoring circuits must be carefully checked to ensure that they correctly
trip.
Then commission the system using the STARTER commissioning tool according to Chapter
"Parameterizing a motor and encoder (Page 186)". The parallel connection for the
SIMOTICS L-1FN3 linear motors selected from the motors list can be activated using the
"Motor parallel connection" checkbox below it. Enter the desired number of motors to be
connected in parallel in the "Number" field. Alternatively, you can also parameterize the
parallel connection in the expert list of the drive.
After changing p0306, you must adapt the control parameters for a motor from the list by the
automatic calculation with p0340 = 1. For a third-party motor not contained in the list, this
setting, however, would cause the data of the electrical equivalent circuit diagram to be lost.
Consequently, select the setting p0340 = 3 for a third-party motor.
Detailed information about parameter p0306 is contained in the STARTER commissioning
tool help and in the SINAMICS S120/S150 List Manual.
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STARTER Commissioning Manual
Commissioning Manual, (IH1), 07/2016, 6SL3097-4AF00-0BP5