Configuration Manual, Synchronous Built-in Motors 1FE1 - Siemens ...

Synchronous Built-in Motors 1FE1
Configuration Manual (PJFE), 09/2008, 6SN1197 -0AC00 -1BP0
Description of the Synchronous Motor
1.3 Technical data
Selecting the power units
The required power units are selected according to the peak currents and continuous
currents that occur in the load duty cycle. If several motors are operated in
parallel with one drive converter, then the summed values of the peak and continuous
currents must be taken into account.
Notice
For system configurations, where built--in motors are used together with regulated
(closed--loop control) infeed units, electrical oscillations can occur with respect to
ground potential.
These oscillations result in increased voltage stressing.
Factors that influence these system oscillations include, among others
-- Cable lengths
-- Size of the infeed and regenerative feedback module
-- Number of axes
-- Motor size
-- Winding design
If increased voltage stressing occurs or if the main insulation is damaged, an HFD
reactor with damping resistor should be used to dampen the system oscillations.
Table 1-3 Order No. of power units
Current [A] Order No. [MLFB] of the power units
8/10/16 6SN1123--1AA00--0BA1
24/32/32 6SN1123--1AA00--0CA1
30/40/51 6SN1123--1AA00--0DA1
45/60/76 6SN1123--1AA00--0LA1
60/80/102 6SN1123--1AA00--0EA1
85/110/127 6SN1123--1AA00--0FA1
120/150/193 6SN1123--1AA00--0JA1
200/250/257 6SN1123--1AA00--0KA1
Using smaller power units
Note
When smaller power units are used, for several motor types, the complete speed
range cannot be used (even when the motor utilization is somewhat lower). Please
contact your local Siemens office.
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