Siemens SINAMICS DCM Operating Instructions Manual page 437

5. Sequence to change over to the original field direction
6. The drive is in operating state o7.2
Please also read the note at the end of the chapter "Direction of rotation reversal using field
reversal"
SINAMICS DCM Control Module
Operating Instructions, 06.2010, C98130-A7067-A1-02-7619
Precondition: The present field direction does not match the field direction requested
using the function "Direction of rotation reversal using field reversal"
– Wait until armature current I
in operating state ≥ o1.4)
– Inhibit field firing pulses (r52268=0 also initiates this)
– Wait until I (r52265) < I
field
– Wait time according to p50092[00] (0.0 to 10.0 s, factory setting 3.0 s)
– Open actual field contactor (r53195[0] = 0 or r53195[1] = 0)
– Wait time according to p50092[01] (0.0 to 10.0 s, factory setting 0.2 s)
– Control new field contactor (r53195[1] = 1 or r53195[0] = 1)
– Reverse the speed actual value (with the exception, for p50083 = 3 ... EMF as speed
actual value)
– Wait time according to p50092[02] (0.0 to 10.0 s, factory setting 0.1 s)
– Enable field firing pulses
– Wait until I (r52265) > I
field
– Wait time according to p50092[04] (0.0 to 10.0 s, factory setting 3.0 s)
– Armature firing pulses are again possible
Acceleration is possible in the original direction of rotation when acknowledging using an
external "Stop" and "Switch-on".
= 0 , then armature pulse inhibit (the drive then remains
A
(p50394)
field min
(r52268×p50398)
field set
Descriptions of functions
10.24 Field reversal
437