Rockwell Automation 20P PowerFlex Digital DC Drive User Manual
Page 180
180
Rockwell Automation Publication 20P-UM001I-EN-P - February 2013
Chapter 3
Programming and Parameters
INPUT
/
OUTPUT
Analog Inputs
74
79
84
[Anlg In1 Offset]
[Anlg In2 Offset]
[Anlg In3 Offset]
Offset value for the analog inputs. If the input has an offset or if the variable
assigned to the input already has a value although there is no input signal
present, this can be compensated for via the value in this parameter.
Default:
Min/Max:
0
–32768/+32767
16-bit
Int
259
260
261
[Anlg In1 Tune]
[Anlg In2 Tune]
[Anlg In3 Tune]
Automatic fine tuning of the analog inputs. If this command is given,
parameter [Ainx Tune Scale] is automatically selected so that the input
signal present, normally full scale, corresponds to the maximum variable
value, such as the value of Par 45 [Max Ref Speed]. Two conditions are
necessary for automatic fine tuning:
• An input voltage greater than 1V or an input current greater than 2 mA.
• Positive polarity. The value found is automatically set for the opposite
direction for four quadrant drives.
Note: The automatically calculated value can, if necessary, be modified
manually via parameter [Ainx Tune Scale]. When using analog input tuning,
Pars [Analog Inx Scale] are normally set to 1.0.
Default:
Options:
0 =
0 =
1 =
“Ready”
“Ready”
“Tune”
16-bit
Int
295
296
297
[Anlg In1 Target]
[Anlg In2 Target]
[Anlg In3 Target]
Enables sampling for the analog inputs.
Default:
Options:
0 =
0 =
1 =
“Assigned”
“Assigned”
“Not Assigned”
16-bit
Int
792
[Anlg In1 Filter]
Analog input 1 filter.
Default:
Min/Max:
Units:
0
0 / 1000
ms
16-bit
Int
801
[Anlg In2 Filter]
Analog input 2 filter.
Note: This parameter was added for firmware version 4.001.
Default:
Min/Max:
Units:
0
0 / 1000
ms
16-bit
Int
802
[Anlg In3 Filter]
Analog input 3 filter.
Note: This parameter was added for firmware version 4.001.
Default:
Min/Max:
Units:
0
0 / 1000
ms
16-bit
Int
1042
[Anlg In1 Cmp]
Defines a reference point for the signal of analog input 1 around which a
comparison range can be set (via Par 1043 [Anlg In1 Cmp Err]) and
monitored.
[Anlg In1 Cmp] = (comparison value) x 10000 / (max. reference value),
where the values of “comparison” and “max. reference” are determined by
the min/max of the related parameter selected via Par 70 [Anlg In1 Sel].
Note: See Analog Input Signal Comparison on page
for more
information.
Default:
Min/Max:
0
– / +10000
16-bit
Int
1043,
1044,
1045
1043
[Anlg In1 Cmp Err]
Defines a value above and below the value set in parameter 1042 [Anlg In1
Cmp] at which Par 1045 [Anlg In1 Cmp Eq] will transition.
[Anlg In1 Cmp Err] = (tolerance value) x 10000 / (max. reference value),
where the values of “tolerance” and “max. reference” are determined by the
min/max of the parameter selected via Par 70 [Anlg In1 Sel].
Note: See Analog Input Signal Comparison on page
for more
information.
Default:
Min/Max:
0
0 / 10000
16-bit
Int
1042,
1044,
1045
1044
[Anlg In1 Cmp Dly]
Amount of time that must elapse, after the value in Par 1043 [Anlg In1 Cmp
Err] has been reached, before Par 1045 [Anlg In1 Cmp Eq] transitions.
Default:
Min/Max:
Units:
0
0 / 65000
ms
16-bit
Int
1042,
1043,
1045
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
A
A