Siemens SINAMICS Series Operating Instructions Manual page 623
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- Equipment manual (350 pages) ,
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Control sequence when specifying "Direction of rotation using field reversal"
1. Drive rotates in direction of rotation 1 or 2 (or is at a standstill)
2. Specify "Direction of rotation reversal using field reversal" by changing the logical state of
the binector selected using p50580
3. Field reversal is executed
Precondition: No braking was initiated using the button function "Braking 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[03] (0.0 to 10.0 s, factory setting 3.0 s)
– Enable armature firing pulses (operating state o1.4 can be exited)
4. Drive brakes and then rotates in direction of rotation 1 or 2 (or is at a standstill)
Note
In the case of an internal speed actual value reversal as a result of field reversal, p50083 is
supplied with inverted signal values (exception: p50083 = 3, see the SINAMICS DCM List
Manual, function diagram 6810).
When using the ramp-function generator it is recommended to parameterize p50228 = 0
(no speed controller setpoint filtering). If this is not done, then initial braking can occur at the
current limit as a result of the speed actual value reversal and setting the ramp-function
generator output to the (reversed) speed actual value or to the value according to p50639
in operating state o1.4.
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
in operating state ≥ o1.4)
(r52265) < I
field
actual value)
(r52265) > I
field
= 0 , then armature pulse inhibit (the drive then remains
A
(p50394)
field min
(r52268)*p50398
field set
Descriptions of functions
10.29 Field reversal
621
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