Rockwell Automation 20C PowerFlex 700H Drives Programming - Manual (Page 24)

24 Rockwell Automation Publication 20C-PM001F-EN-P - March 2012
Chapter 2 Programming and Parameters
Speed Command File
Fil
e
Gr
ou
p
No
.
Parameter Name & Description Values Rela
ted
SPEED C
O
MMAND
Spd Mode/Limits
079 [Speed Units]
Selects the units to be used for all speed related
parameters. Options 0 & 1 indicate status only.
Options 2 & 3 will convert/configure the drive for
that selection.
“Convert Hz” (2) - converts all speed based
parameters to Hz, and changes the value
proportionately (i.e. 1800 RPM = 60 Hz).
“Convert RPM” (3) - converts all speed based
parameters to RPM, and changes the value
proportionately.
Note: This parameter does not get changed with a
“Reset to Defaults”.
Default:
Options:
0
0
1
2
3
“Hz”
“Hz”
“RPM”
“Convert Hz”
“Convert RPM”
080 [Feedback Select]
Selects the source for motor speed feedback.
“Open Loop” (0) - no encoder is present, and slip
compensation is not needed.
“Slip Comp” (1) - tight speed control is needed,
and encoder is not present.
Default:
Options:
0
0
1
“Open Loop”
“Open Loop”
“Slip Comp”
152
081 [Minimum Speed]
Sets the low limit for speed reference after scaling
is applied. Refer to parameter 083 [Overspeed
Limit].
Default:
Min/Max:
Units:
0.0
0.0/[Maximum Speed]
0.1 Hz
0.1 RPM
079
083
092
095
082 [Maximum Speed]
Sets the high limit for speed reference after
scaling is applied. Refer to parameter 083
[Overspeed Limit].
Default:
Min/Max:
Units:
50.0 or 60.0 Hz (volt class)
[Motor NP RPM]
5.0/320.0 Hz
75.0/19200.0 RPM
0.1 Hz
0.1 RPM
055
079
083
091
094
083 [Overspeed Limit]
Sets the incremental amount of the output
frequency (above [Maximum Speed]) allowable
for functions such as slip compensation.
[Maximum Speed] + [Overspeed Limit] must be
≤
[Maximum Freq]
Default:
Min/Max:
Units:
10.0 Hz
300.0 RPM
0.0/20.0 Hz
0.0/600.0 RPM
0.1 Hz
0.1 RPM
055
079
082
084
085
086 [Skip Frequency 1]
[Skip Frequency 2]
[Skip Frequency 3]
Sets a frequency at which the drive will not
operate. [Skip Frequency x] and [Skip Frequency
Band] must not equal 0.
Default:
Default:
Default:
Min/Max:
Units:
Based on Drive Rating
0.0 Hz
0.0 Hz
–/+[Maximum Speed]
0.1 Hz
087
087 [Skip Freq Band]
Determines the bandwidth around a skip
frequency. [Skip Freq Band] is split, applying 1/2
above and 1/2 below the actual skip frequency.
The same bandwidth applies to all skip
frequencies.
Default:
Min/Max:
Units:
0.0 Hz
0.0/30.0 Hz
0.1 Hz
084
085
086
32
32
32
Allowable Output Frequency Range
Bus Regulation or Current Limit
V
olta
g
e
Frequency
Allowable Output Frequency Range
Normal Operation
Allowable Reference Frequency Range
Frequency Trim due to
Speed Control Mode
Motor Volts
Break Volts
Start Boost
0 Min
Speed
Motor
Hz
Max
Speed
Output
Freq Limit
Max
Freq Break
Frequency
Overspeed
Limit
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