Siemens SIMOREG DC Master 6RA7028-6DS22 Operating Instructions Manual page 410

Parameter list
PNU Description
P092 Delay times for field reversal
These times are used to control a reversing contactor for reversing the field
polarity on a 1-quadrant converter with field reversal.
i001: Delay time for the field reduction before opening of the current
field contactor
When field polarity reversal is initiated, the delay time set in
P092.i001 elapsed after reaching I field (K0265) < I field min
(P394) before the current field contactor is opened.
i002: Delay time before actuation of the new field contactor
[only SW 1.7 and later]
After opening the current field contactor the delay time set in
P092.i002 elapsed before the field contactor for the "new" field
direction is actuated (drop-out delay time of the contactor use is
usually longer then the pick-up delay time).
i003: Delay time for enabling the field firing pulses
[only SW 1.7 and later]
After actuation of the field contactor for the "new" field direction,
the delay time acc. to P092.i003 elapses before the field firing
pulses are enabled. This time must be longer than the pick-up
delay time of the contactor used.
i004: Delay time after the field build-up before armature enable
[only SW 1.7 and later]
After - directly following the field firing pulse enable - the actual
field current value I field in the "new" field direction den value
I field (K0265) > I field set (K0268)*P398/100% reached hat, the
delay time acc. to P092.i004 elapses, before the internal
(armature) "Operating enable of field reversal" is issued, i.e.
before the Stopping of the drive in operating state ≥ o1.4 is
canceled. This delay time permits waiting of the end of
overshooting of the actual field current value and therefore
overshooting of the EMF of the DC machine straight after the
field current has been built up again, before the armature
operating enable is issued. This is intended to prevent armature
overcurrents due to excessive EMF during overshooting.
P093 Pick-up delay for line contactor
Pick-up of the line contactor is delayed in relation to "Switch on auxiliaries"
by the time delay set in this parameter.
P094 Switch-off delay for auxiliaries
Switch-off of the auxiliaries is delayed in relation to dropout of the line
contactor by the time delay set in this parameter.
P095 Pick-up time for a contactor in the DC circuit
If the DC output (terminals 1C1 and 1D1) is switched through to the motor
via a contactor, and if this contactor is controlled by the "Relay for line
contactor" (terminals 109 and 110), then the gating pulses may not be
enabled until the contactor has safely picked up. For this purpose, it may be
necessary to parameterize an additional delay time for the pick-up
operation. The timer set in P095 commences during a pick-up operation
when the converter reaches operating state o5. If the timer has still not run
down by the time the converter exits state o4, then the converter dwells in
state o3.2 until the timer has finished.
P096 After-running time for the device fan
After the drive has been shut down (operating state ≥ 7.0 reached)
the device fan continues to run until the power section has cooled down.
With this parameter you can set the minimum duration for the after-running
time.
11.7 Definition of motor
P100 Rated motor armature current (acc. to motor rating plate)
*
0.0 Parameter not yet set
FDS
11-18
Value range
[Unit]
Steps
0.0 to 10.0
[s]
0.1s
0.0 to 120.0
[s]
0.1s
0.0 to 120.0
[s]
0.1s
0.00 to 1.00
[s]
0.01s
[SW 1.6 and later] 0.0 to 60.0
[min]
0.1min
0.0 to 6553.0
[A]
0.1A
SIMOREG DC Master
02.00
No. indices See
Factory Change
setting (Access /
Type Status)
Ind: 4 P052 = 3
FS= P051 = 40
i001: 3.0 on-line
i002: 0.2
i003: 0.1
i004: 3.0
Type: O2
Ind: None P052 = 3
FS=0.0 P051 = 40
Type: O2 Online
Ind: None P052 = 3
FS=0.0 P051 = 40
Type: O2 Online
Ind: None P052 = 3
FS=0.00 P051 = 40
Type: O2 Online
Ind: None P052 = 3
FS=4,0 P051 = 40
Type: O2 on-line
Ind: 4 P052 = 3
FS=0.0 P051 = 40
Type: O2 Offline
SIEMENS AG 6RX1700-0AD76
Operating Instructions