Rockwell Automation PowerFlex series, Руководство пользователя

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PowerFlex Digital DC Drive User Manual - Publication 20P-UM001C-EN-P - July 2008
3-16 Programming and Parameters
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Field
Config
499 [Field Economy En]
When this parameter is set to 1 = “Enabled” and the value in Par
107 [Speed Zero Level] is reached, the minimum field current
(set via Par 468 [Min Fld Curr Pct]) is produced (field economy).
•
“Disabled” = Disables the field economy function
•
“Enabled” = Enables the field economy function
Default:
Options:
1 =
0 =
1 =
“Enabled”
“Disabled”
“Enabled”
395,
468
916 [Fld Const 40 Pct]
Current value at 40% of the field current.
Default:
Min/Max:
Units:
40.00
0.00 / 100.00
%
469
917 [Fld Const 70 Pct]
Current value at 70% of the field current.
Default:
Min/Max:
Units:
70.00
0.00 / 100.00
%
469
918 [Fld Const 90 Pct]
Current value at 90% of the field current.
Default:
Min/Max:
Units:
90.00
0.00 / 100.00
%
469
919 [Set Fld Curve]
When set to “0”, this parameter controls the motor field current
to field reference curve according to the values specified in the
[Fld Const xx Pct] parameters. With this curve is defined, the
result of [Max Fld Curr Pct] / [Field Ref Pct] equals the
percentage of field current according to the characteristic of the
curve. This field is Write Only. After the value of this field is set to
“0”, it will automatically return to “1”.
Default:
Min/Max:
1
0 / 1
916,
917,
918
920 [Reset Fld Curve]
when set to “1”, resets the drive to use a linear field curve. When
this parameter is set, Par 280 [Nom Mtr Fld Amps] is linearly
changed through [Max Fld Curr Pct] / [Field Ref Pct]. This field is
Write Only. After the value of this field is set to “1”, it will
automatically return to “0”.
Default:
Min/Max:
Units:
0
0 / 1
921 [Out Volt Level]
The percentage of maximum output voltage based on the value
in Par 175 [Rated Motor Volt]. This parameter allows you to
change the output voltage at the motor end when the drive is in
"Field Weaken" mode. Typically set to the default value when the
drive is in Field Weakening mode.
Note: This parameter can be assigned to an analog output or
analog input.
Default:
Min/Max:
Units:
100.00
0.00 / 100.00
%
1407 [Field Econ Delay]
Amount of time to elapse after the drive reaches zero speed (as
determined by Par 107 [Speed Zero Level]) before field
economy becomes active.
Default:
Min/Max:
Units:
300
0 / 1800
s
To
rq
A
ttrib
utes
7 [Current Limit]
Symmetrical current limit expressed as a percentage of the
value in Par 179 [Nom Mtr Arm Amps]. This value applies to
both current directions for four quadrant drives.
•
If Par 7 [Current Limit] is changed, Pars 8 [Current Lim Pos]
and 9 [Current Lim Neg] are set to the same value. If
subsequently changed, the value of Pars 8 [Current Lim Pos]
and/or 9 [Current Lim Neg] override the value of Par 7
[Current Limit].
Default:
Min/Max:
Units:
150
0 / 200
%
8,
9,
179
File Gr
oup
No.
Parameter Name & Description
See page 3-2 for symbol descriptions
Values
Related
A
A
A
A
A
A