Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual - Manual (Page 280)

280 Rockwell Automation Publication 750-PM001J-EN-P - October 2014
Chapter 5 Embedded Feature and Option Module Parameters
Un
iv
ersal F
eedback
Feedback 0
21 FB0 SSI Resol
Feedback 0 SSI Resolution
Configures the number of bits for the position within one revolution (resolution) of the
SSI encoder for the feedback 0 device. Setting is based on the encoder specifications. Units:
Default:
Min/Max: Bits
13
8 / 32 RW 32-bit
Integer
22 FB0 SSI Turns
Feedback 0 SSI Turns
Configures the number of bits for the revolutions of the SSI encoder for the feedback 0
device. Setting is based on the encoder specifications. Set to 0 for a linear SSI encoder. Units:
Default:
Min/Max: Bits
12
0 / 16 RW 32-bit
Integer
25 FB0 Lin CPR
Feedback 0 Linear Encoder Counts Per Revolution
Specifies the counts per motor revolution for a linear encoder for the feedback 0 device.
This reflects the relationship between motor feedback counts and linear feedback
counts when using linear load side feedback. When a load side position feedback device
is used, the counts per rev for that device must be entered using the effective change in
position feedback per one motor revolution, taking into account machine mechanics.
The setting for this parameter is not used by encoder but instead is used by the position
control routine firmware on the main control board. Default:
Min/Max: 0
0 / 4294967295 RW 32-bit
Integer
26 FB0 Lin Upd Rate
Feedback Linear Update Rate
Sets the sample rate for the linear channel for the feedback 0 device. This determines
how often the Universal Feedback module will sample the absolute position device. Default:
Options: 2 = “1.5 ms”
0 = “0.5 ms”
1 = “1.0 ms”
2 = “1.5 ms“
3 = “2.0 ms“ RW 32-bit
Integer
27 FB0 LinStahl Sts
Feedback 0 Linear Stahl Status RO 16-bit
Integer
Displays the error status of the linear Stahl encoder for the feedback 0 device.
Bit 0 “Optics Alarm” – Displays an alarm when optics require cleaning.
Bit 1 “OutOfRailAlm” – Indicates that the read encoder count is at the maximum value (524,287).
Bit 4 “OutOfRailErr” – Indicates that there is no more room between the read head and the rail.
Bit 8 “Read Head 1” – Indicates that the read head must be cleaned or installed correctly.
Bit 9 “Read Head 2” – Indicates that the read head must be cleaned or installed correctly.
Bit 10 “RAM Error” – Indicates a RAM error. Reading head needs to be repaired.
Bit 11 “EPROM Error” – Indicates an EPROM error. Reading head needs to be repaired.
Bit 12 “ROM Error” – Indicates a ROM error. Reading head needs to be repaired.
Bit 14 “No Position” – Indicates that no position value was available. Only happens after power on or reset.
Fi
le
Grou
p
No. Display Name
Full Name
Description Values
Re
ad
-W
ri
te
Da
ta
T
ype
Options
Res
er
ved
No P
osi
tion
Res
er
ved
ROM Er
ro
r
EPRO
M E
rr
or
RA
M Er
ro
r
Rea
d Hea
d 2
Rea
d Hea
d 1
Res
er
ved
Res
er
ved
Res
er
ved
O
utO
fR
ailE
rr
Res
er
ved
Res
er
ved
Ou
tO
fRai
lA
lm
Optics Alarm
Default 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 = Condition False
1 = Condition True