Siemens SINAMICS DCM Operating Instructions Manual page 587

Control module

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5. Sequence to change over to the original field direction

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

– Inhibit field firing pulses (r52268=0 also initiates this)

– Wait until I

– Wait time according to p50092[00] (0.0 to 10.0 s, factory setting 3.0 s)

– Open current 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 (r53195.0 = 1 or r53195.1 = 1)

– Reverse the speed actual value (with the exception, for p50083 = 3 ... EMF as speed

– Wait time according to p50092[02] (0.0 to 10.0 s, factory setting 0.1 s)

– Enable field firing pulses

– Wait until I

– Wait time according to p50092[04] (0.0 to 10.0 s, factory setting 3.0 s)

– Armature firing pulses are again possible

6. The drive is in operating state o7.2

Acceleration is possible in the original direction of rotation when acknowledging using an

external "Stop" and "Switch-on"

Please also read the note at the end of the chapter "Direction of rotation reversal using field

Figure 10-85 Wait times for field reversal (parameter p50092)

SINAMICS DCM Control Module

Operating Instructions, 12/2018, A5E34888669A

in operating state ≥ o1.4)

(r52265) < I

actual value)

(r52265) > I

= 0 , then armature pulse inhibit (the drive then remains

(r52268×p50398)

Descriptions of functions

10.27 Field reversal

Sinamics dc master