Motor control file – Rockwell Automation 20P PowerFlex Digital DC Drive User Manual

Page 123

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

123

Programming and Parameters

Chapter 3

Motor Control File

MONIT

O

R

D

ri

ve Da

ta

466

[AC Line Voltage]

AC input voltage.

Default:

Min/Max:
Units:

Read Only

0 / 960
Vac

16-bit
Int

588

[AC Line Freq]

AC input frequency.

Default:

Min/Max:
Units:

Read Only

0.00 / 70.00
Hz

Real

1052

[Output Power]

Output power.
Note: This parameter can be assigned to an analog output.

Default:

Min/Max:
Units:

Read Only

0.00 / 9999.99
kW

Real

Fil

e

Gr

oup

No

.

Parameter Name & Description

See

page 110

for symbol descriptions

Values

Da

ta

T

yp

e

Rela

ted

Fi

le

Grou

p

No

.

Parameter Name & Description

See

page 110

for symbol descriptions

Values

Da

ta T

ype

Rela

ted

MOT

O

R C

ONTROL

M

otor D

ata

45

[Max Ref Speed]

Highest speed reference that can be commanded. The value of this parameter
also scales external speed reference values (rpm) to internal units (counts),
including analog inputs (10V = Par 45 rpm). Rated motor speed is
determined via Par 456 [Fld Weaken Ratio] when field weakening is used. If
field weakening is not used, set this parameter to the motor base speed.
Notes: If a speed feedback device is used (encoder, resolver, or tachometer),
see Drive Reference and Feedback Scaling on page

265

for instructions. The

maximum value was changed from “16383” for firmware version 3.001.

Default:

Min/Max:
Units:

1750

1 / 6000
rpm

32-bit
Int

2,
456

162

[Max Feedback Spd]

Specifies the scaling between internal (counts) and external speed feedback
values. Typically, this parameter is set to the same value as Parameter 45
[Max Ref Speed]. If an analog (DC) tachometer is used, this parameter's value
must be set to be compatible with the S4 switches on the control board (see
DIP Switch and Jumper Settings on page

72

). If armature voltage feedback is

used, this parameter must be set to the motor nameplate base speed. Par 585
[Overspeed Val] should be set 10% higher than the value entered into Par
162. Rated motor speed is determined via Par 456 [Fld Weaken Ratio] when
field weakening is used. If field weakening is not used, set this parameter to
the motor base speed.
Notes: If a speed feedback device is used (encoder, resolver, or tachometer),
see Drive Reference and Feedback Scaling on page

265

for instructions. The

maximum value was changed from “16383” for firmware version 3.001.

Default:

Min/Max:
Units:

1750.00

1.00 / 6000
rpm

Real

169,
414,
456,
458,
585

175

[Rated Motor Volt]

Maximum armature voltage of the drive. Typically, this value is set to the
Motor Nameplate Armature voltage. When Par 469 [Field Mode Sel] is set to 1
= “Field Weaken”, the value in this parameter equals the voltage at which the
field weakening phase begins.
Note: This parameter affects the threshold of an overvoltage condition, as
indicated by an “Arm Overvoltage” fault (F5).

Default:

Min/Max:
Units:

240.0

20.0 / 999.0
V

Real

162,
169,
469,
481

179

[Nom Mtr Arm Amps]

Rated motor nameplate armature current. The settings for the current limit
and the overload function are based on this current value. Also, this value
should be greater than 1/3 the value of Par 465 [Drive Size].

Default:

Min/Max:
Units:

Based on drive current rating

0.10 / Based on drive current rating
A

Real

465

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