Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Reference Manual - Manual (Page 134)

134 Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011
Chapter 1 Detailed Drive Operation
Parameter 253 [FB Opt1 Spd Fdbk] contains the speed feedback from the linear
sensor when the MDI option card is installed.
Parameter 249 [Fdbk Option ID] displays information about the feedback
option installed in feedback option card port 0. Options:
• Bits 15…11 contain the module ID number.
• Bits 10…6 contain the version number.
• Bits 5…3 contain the revision number high.
• Bits 2…0 contain the revision number low.
Hexadecimal 1000 indicates a resolver, hexadecimal 2000 indicates an old high-
resolution board, and hexadecimal 2040 indicates a new high-resolution board.
Stegmann Hi-Resolution Encoder Feedback Option
The position feedback (seen in parameter 250 [FB Opt0 Posit]) from a Stegmann
Hi-Resolution encoder counts at a rate of 1,048,576 counts per motor revolution.
Parameter 251 [FB Opt0 Spd Fdbk] contains the speed feedback from the
Stegmann Hi-Resolution encoder when connected at port 0.
Parameter 259 [Stegmann0 Cnfg] is used to configure the Stegmann Hi-
Resolution encoder.
• Bit 5 “Direction” determines the counting direction. If set to “0”, the
direction is forward or up. If set to “1”, the direction is reverse or down.
251
250
249
Feedback
Option Card 0
Processing
259
268
272
273
274
275
276
260
269
Stegmann0 Status
To Feedback
Selection
Resolver0 Status
263
264 Heidenhain0 Stat
Reslvr0 SpdRatio
Reslvr0 Carrier
Reslvr0 In Volts
Rslvr0 XfrmRatio
Reslvr0 CableBal
Stegmann0 Cnfg
Resolver0 Confg
Fdbk Option ID
Heidenhain0 Cnfg
FB Opt0 Spd Fdbk
FB Opt0 Posit
N N NNN N N NNN N NNN N NNN
Module ID No. Version No. Revision No. High Revision No. Low