Rockwell Automation 20P PowerFlex Digital DC Drive User Manual

Page 139

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Rockwell Automation Publication 20P-UM001I-EN-P - February 2013

139

Programming and Parameters

Chapter 3

SPEE

D C

O

MMAND

Discr

et

e Speeds

267

[TB Manual Ref]

Reference value for the drive when the Terminal Block asserts Manual
reference control.
Notes: This parameter can be assigned to an analog input. See Reference
Control o
n page

280

for more information.

Default:

Min/Max:
Units:

0

–/+ Par 45 [Max Ref Speed]

(1)

rpm

16-bit
Int

45

(1)

The value of [Max Ref Speed] cannot exceed 6000 rpm.

1409 [Jog Off Delay]

Specifies the amount of time that will elapse between removing the Jog
input and commanding the main contactor to open. The amount of time
specified in [Jog Off Delay] will not begin to elapse until the measured speed
feedback is less than or equal to the value of parameter 107 [Speed Zero
Level]. This delay reduces the wear on the contactor when repeatedly
opening and closing the Jog input over a short period of time. If a stop
command is asserted before the jog off delay time has completed, the drive
will stop and the delay timer is cancelled.
Note: This parameter was added for firmware version 2.001.

Default:

Min/Max:
Units:

1

0 - 10
s

16-bit
Int

Sp

ee

d R

ef

er

en

ce

s

42

[Trim Ramp]

This value is added to the speed reference just before the Speed Ramp
function.
Notes: This parameter can be assigned to an analog input. See Reference
Control o
n page

280

for more information.

Default:

Min/Max:
Units:

0

–/+Par 45 [Max Ref Speed]

(1)

rpm

16-bit
Int

45,
378

(1)

The value of Par 45 [Max Ref Speed] cannot exceed 6000 rpm.

43

[Trim Speed]

This value is added to the speed reference just before the speed regulator
(and after the Speed Ramp function).
Notes: This parameter can be assigned to an analog input. See Reference
Control o
n page

280

for more information.

Default:

Min/Max:
Units:

0

–/+ Par 45 [Max Ref Speed]

(1)

rpm

16-bit
Int

45,
379

(1)

The value of Par 45 [Max Ref Speed] cannot exceed 6000 rpm.

378

[Trim Ramp Pct]

Trim ramp value defined as a percentage of the value defined in Par 45 [Max
Ref Speed].

Default:

Min/Max:
Units:

0.00

–/+100.00
%

Real

42

379

[Trim Speed Pct]

Trim speed reference value defined as a percentage of the of the value
defined in Par 45 [Max Ref Speed].

Default:

Min/Max:
Units:

0.00

–/+100.00
%

Real

43

1017 [Speed Ratio]

Determines the speed ratio value for the Speed-Draw function.
Notes: This value can be input to the drive digitally, or via an analog input.
See Speed Draw Function on page

293

for more information.

Default:

Min/Max:

10000

0 / 32767

16-bit
Int

Spe

ed Regula

to

r

87

[Spd Reg Kp]

Proportional gain of the speed regulator that can be adjusted while the drive
is running.

Default:

Min/Max:
Units:

3.00

0.00 / 100.00
%

Real

93,
99

88

[Spd Reg Ki]

Integral gain of the speed regulator that can be adjusted while the drive is
running.

Default:

Min/Max:
Units:

0.30

0.00 / 100.00
%

Real

94,
100

93

[Spd Reg Kp Base]

The proportional gain (K

P0

) of the speed regulator (base value). Typically, this

parameter does not need to be modified because it is automatically set by
the drive during autotune.

Default:

Min/Max:
Units:

0.30 x Par 93

max

0.001 / Based on drive current rating
A / rpm

Real

87,
99

94

[Spd Reg Ki Base]

The integral gain (K

I0

) of the speed regulator (base value). Typically, this

parameter does not need to be modified because it is automatically set by
the drive during autotune.

Default:

Min/Max:
Units:

0.30 x Par 94

max

0.001 / Based on drive current rating
A/ rpm x ms

Real

88,
100

95

[Spd Reg Pos Lim]

Positive Speed Regulator output limit. When this limit is active the positive
integrator portion of the PI regulator is held to prevent windup.
Note: This parameter was added for firmware version 3.001.

Default:

Min/Max:
Units:

200.00

–/+250.00
%

Real

96

Fil

e

Gr

oup

No

.

Parameter Name & Description

See

page 110

for symbol descriptions

Values

Da

ta

T

yp

e

Rela

ted

A

A

A

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