Rockwell Automation 1734-IK Encoder/Counter Modules User Manual User Manual
Page 31
Publication 1734-UM006B-EN-P - August 2005
Install the Module 2-11
Assumes a 50% duty cycle signal.
Filter Selection
07
06
05
04
03
02
01
00
0
ZF
BF
AF
FS
0
0
0
0
No Filter
0
0
0
1
50kHz (10
µs + 0µs/-1.6µs)
0
0
1
0
5kHz (100
µs + 0µs/-13.2µs)
0
1
0
0
500Hz (1.0ms + 0
µs/-125µs)
1
0
0
0
50Hz (10ms + 0ms/-1.25ms)
0
A input not filtered
1
A input filtered
0
B input not filtered
1
B input filtered
0
Z input not filtered
1
Z input filtered
Scalar Selection
07
06
05
04
03
02
01
00
Scalar
1
0
0
0
0
0
0
0
1
Z - F
min
= 0.149Hz
0
0
0
0
0
0
1
0
Z/2 - F
min
= 0.298Hz
0
0
0
0
0
1
0
0
Z/4 - F
min
= 0.596Hz
0
0
0
0
1
0
0
0
Z/8 - F
min
= 1.192Hz
0
0
0
1
0
0
0
0
Z/16 - F
min
= 2.384Hz
0
0
1
0
0
0
0
0
Z/32 - F
min
= 4.768Hz
0
1
0
0
0
0
0
0
Z/64 - F
min
= 9.537Hz
1
0
0
0
0
0
0
0
Z/128 - F
min
= 19.073Hz
1
Where F
min
indicates the frequency at which the zero frequency detect is asserted
due to counter overflow.