PowerFlex Digital DC Drive User Manual - Publication 20P-UM001C-EN-P - July 2008
Programming and Parameters 3-25
SPEED COMMAND
Speed Regulator
101 [Speed Thresh Pos]
Threshold speed for the drive above or below which the value of Par
393 [Speed Threshold] changes. When the speed of the drive
exceeds the value of this parameter, Par 393 [Speed Threshold]
displays “Above Thresh” (0). When the speed of the drive is below the
value of this parameter, Par 393 [Speed Threshold] displays “Below
Thresh” (1).
Default:
Min/Max:
Units:
1000
1 / 32767
RPM
393
102 [Speed Thresh Neg]
Threshold speed for the drive above or below which the value of Par
393 [Speed Threshold] changes. When the speed of the drive
exceeds the value specified in this parameter, Par 393 [Speed
Threshold] displays “Above Thresh” (0). When the speed of the drive
is below this threshold, Par 393 [Speed Threshold] displays “Below
Thresh” (1).
Default:
Min/Max:
Units:
1000
1 / 32767
PRM
393
103 [Threshold Delay]
Amount of time that must elapse before indication that the drive speed
is above the value set in Par 101 [Speed Thresh Pos] or below the
value set in Par 102 [Speed Thresh Neg].
Default:
Min/Max:
Units:
100
0 / 65535
ms
393
104 [At Speed Error]
Defines the speed above and below the speed reference (in Par 118
[Speed Reg In]) at which the value of Par 394 [At Speed] changes.
When the difference between the speed reference and the actual
speed is greater than the value of this parameter, Par 394 [At Speed]
displays “Not Equal” (0). When the difference between the speed
reference and the actual speed is less than the value of this
parameter, Par 394 [At Speed] displays “Equal” (1).
Default:
Min/Max:
Units:
100
1 / 32767
RPM
394
105 [At Speed Delay]
Amount of time that must elapse before indication that the drive speed
reference is within the range specified in Par 104 [At Speed Error]
occurs.
Default:
Min/Max:
Units:
100
0 / 65535
ms
394
106 [Ref Zero Level]
Speed below which speed references are equal to zero speed. Switch
used in the Speed Zero function.
Default:
Min/Max:
Units:
20
1 / 32767
RPM
123,
124,
125,
126
107 [Speed Zero Level]
Speed below which the actual speed is considered equal to zero.
When a Stop command is issued and actual speed goes below this
value, drive output is disabled. The value applies to both rotation
directions for four quadrant drives.
Note: Setting the value of this parameter too low could prevent the
proper functioning of field economy.
Default:
Min/Max:
Units:
20
1 / 32767
RPM
395
108 [Speed Zero Delay]
Amount of time that must elapse after the actual speed goes below
the value set in Par 107 [Speed Zero Level] before Par 395 [At Zero
Speed] changes state.
Default:
Min/Max:
Units:
100
0 / 65535
ms
395
File
Group
No.
Parameter Name & Description
See page 3-2 for symbol descriptions
Values
Related
A
A
A
A
A
A
A
Actual Speed
Par 107
[Speed Zero Level]
Par 108 [Speed Zero Delay]
Par 395
[At Zero Speed]
Fwd
Rev
Actual Speed = 0
A
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