Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual User Manual
Page 169

Rockwell Automation Publication 750-RM001F-EN-P - February 2012
169
Parameter Data
Appendix B
Fil
e
Gr
ou
p
No.
Display Name
Full Name
Description
Values
Re
ad
-Write
Da
ta T
ype
Sa
fe
S
pee
d
Mo
ni
tor
Fe
edback
27
Fbk Mode
Feedback Mode
Selects the number of feedback devices and the type of discrepancy checking.
“Single Fbk” (0) - 1 Encoder
“Dual S/P Chk” (1) - 2 Encoders with Speed and Position Discrepancy Checking
“Dual Spd Chk” (2) - 2 Encoders with Speed Discrepancy Checking
“Dual Pos Chk” (3) - 2 Encoders with Position Discrepancy Checking
Default:
Options:
0 = “Single Fbk”
0 = “Single Fbk”
1 = “Dual S/P Chk”
2 = “Dual Spd Chk”
3 = “Dual Pos Chk”
RW 8-bit
Integer
28
Fbk 1 Type
Feedback 1 Type
Selects the type of feedback for encoder 1.
When using the Safe Speed Monitor module with a 20-750-UFB-1 Universal Feedback
module, set this parameter to 0 “Sine/Cosine” and ensure that the Universal Feedback
module is set to a Sine/Cosine type device (P6 [FB0 Device Sel] and/or P36 [FB1 Device
Sel]).
Default:
Options:
1 = “Incremental”
0 = “Sine/Cosine”
1 = “Incremental”
RW 8-bit
Integer
29
Fbk 1 Units
Feedback 1 Units
Selects rotary or linear feedback for encoder 1.
Default:
Options:
0 = “Rev”
0 = “Rev” (Rotary)
1 = “mm” (Linear)
RW 8-bit
Integer
30
Fbk 1 Polarity
Feedback 1 Polarity
Defines the direction polarity for encoder 1.
Default:
Options:
0 = “Normal”
0 = “Normal” (Same as encoder)
1 = “Reversed”
RW 8-bit
Integer
31
Fbk 1 Resolution
Feedback 1 Resolution
Counts/Revolution.
1…65,535 pulses/revolution or pulses/mm based on rotary or linear configuration
defined by P29 [Fbk 1 Units].
Default:
Min/Max:
1024
1 / 65535
RO
16-bit
Integer
32
Fbk 1 Volt Mon
Feedback 1 Voltage Monitor
Encoder 1 voltage to be monitored.
Default:
Options:
0 = Voltage not monitored
0 = Voltage not monitored
5 = 5V +/- 5%
9 = 7…12V
12 = 12V +/- 5%
24 = 24V - 10%…24V + 5%
RW 8-bit
Integer
33
Fbk 1 Speed
Feedback 1 Speed
Displays the output speed of encoder 1.
Units based on rotary or linear configuration defined by P29 [Fbk 1 Units].
Units:
Min/Max:
RPM
mm/s
-214748364.8 / 214748364.7 RPM
-214748364.8 / 214748364.7mm/s
RO
32-bit
Integer
34
Fbk 2 Units
Feedback 2 Units
Selects rotary or linear feedback for encoder 2.
Default:
Options:
0 = “Rev”
0 = “Rev” (Rotary)
1 = “mm” (Linear)
RW 8-bit
Integer
35
Fbk 2 Polarity
Feedback 2 Polarity
Defines the direction polarity for encoder 2.
Default:
Options:
0 = “Normal”
0 = “Normal” (Same as encoder)
1 = “Reversed”
RW 8-bit
Integer
36
Fbk 2 Resolution
Feedback 2 Resolution
Counts/Revolution.
0…65,535 pulses/revolution or pulses/mm based on rotary or linear configuration
defined by P34 [Fbk 2 Units].
Default:
Min/Max:
0
1 / 65535
RW 16-bit
Integer