Rockwell Automation 20P PowerFlex Digital DC Drive User Manual
Page 129
Rockwell Automation Publication 20P-UM001I-EN-P - February 2013
129
Programming and Parameters
Chapter 3
MOT
OR C
ONTROL
Tor
q A
tt
rib
ut
es
754
[TrqTpr Lim3]
Third reduced current limit of the current/speed curve. The value defined in
this parameter must be less than the value in Par 753 [TrqTpr Lim2] and
greater than the value in Par 755 [TrqTpr Lim4].
Default:
Min/Max:
Units:
0
0 / 200
%
16-bit
Int
750,
756
755
[TrqTpr Lim4]
Last reduced current limit of the current/speed curve. The value defined in
this parameter must be less than the value in Par 754 [TrqTpr Lim3]. The drive
will operate at this current limit up to the value set in parameter 162 [Max
Feedback Spd].
Default:
Min/Max:
Units:
0
0 / 200
%
16-bit
Int
750,
756
756
[TrqTpr Spd]
Threshold speed at which torque reduction begins, as determined by the
current/speed curve.
Default:
Min/Max:
Units:
0
0 / Par 162
rpm
16-bit
Int
750,
756
926
[Torq Cur Filter]
First rate low-pass filter for Par 1193 [Torq Current Pct].
Note: The name of this parameter was changed from [Filt Torq Cur] for
firmware version 3.001.
Default:
Min/Max:
Units:
0.100
0.001 / 0.250
s
Real
1193
Spe
ed F
eedb
ack
169
[Encoder PPR]
Number of pulses per revolution of the digital encoder. The value of Pars 169
[Encoder PPR] and 162 [Max Feedback Spd] must be set as indicated in Speed
Feedback on page
Default:
Min/Max:
1024.00
100.00 / 32770.00
Real
162
414
[Fdbk Device Type]
The source of speed feedback. It is strongly recommended that a feedback
device be used when running a permanent magnet motor.
• 1 “Encoder” = Digital encoder (jumpers S20, S21, see page
• 2 “DC Tach” = DC analog tachometer (jumper S4, see page
• 3 “Armature” = Internal measurement of the armature voltage
• 4 “Resolver” = The resolver feedback module must be installed and
configured
Note: Option 4 “Resolver” was added for firmware version 5.002.
Default:
Options:
3 =
1 =
2 =
3 =
4 =
“Armature”
“Encoder”
“DC Tach”
“Armature”
“Resolver”
16-bit
Int
422
[Fdbk Option ID]
Displays information about the resolver feedback option module (if
installed).
Module ID (bits 15…11), Version (bits 10…6), Revision High
(bits 5…3), Revision Low (bits 2…0) (For example, 6217 would indicate
Module ID 3, Version 1, Revision 1.1). If no resolver module is detected this
value will be set to 0.
Note: This parameter was added for firmware version 5.002.
Default:
Min/Max:
Read Only
0 / 8191
16-bit
Int
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
A