4 configuring the cml forward path, P.394) – Rockwell Automation FlexPak 3000 Digital DC Drive Version 4.3 User Manual
Page 79
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Configuring the Current Minor Loop
6-9
6.4
Configuring the CML Forward Path
The proportional-integral (
PI
) controller adjusts the armature firing angle,
ARMATURE
DELTA
(P.399), to compensate for any difference between the reference and the
feedback signals. When the drive is stopped, this block’s output is clamped to zero.
Proportional gain is set by
CML
PI
PROP
GAIN
(P.301). The integral time constant can be
changed by adjusting
CML
PI
LEAD
FREQUENCY
(P.302)
Drive Current Transformer Turns Ratio (Tp/Tn)
Value to Enter
1.5 HP @ 230 VAC / 3 HP @ 460 VAC
139
2 thru 7.5 HP @ 230 VAC / 5 thru 15 HP @ 460 VAC
208
10 thru 15 HP @ 230 VAC / 20 thru 30 HP @ 460 VAC
417
20 thru 30 HP @ 230 VAC / 40 thru 60 HP @ 460 VAC
833
40 thru 75 HP @ 230 VAC / 75 thru 150 HP @ 460 VAC
2000
100 thru 150 HP @ 230 VAC / 200 thru 300 HP @ 460 VAC
5230
400 to 600 HP @ 460 VAC
7770
7A
139
29A
208
55A
417
110 A
833
265 A
2000
ARMATURE
BRIDGE
POL
(P.394)
Indicates which
bridge is currently
active.
OFF
indicates
the forward bridge.
ON
indicates the
reverse bridge.
Parameter Range:
OFF
ON
Default Setting:
n/a
Parameter Type:
Output
OIM Menu Path(s):
Current Minor Loop (
CML
) -
CML
Test Points