ADLINK Technology PCI-8254, User Manual

Page: 61 / 226

Signal Connection 47
PCI-8254 / PCI-8258
3.3 Encoder Input, EA & EB & EZ
PCI-8254/PCI-8258 provides 4/8 encoder input channels
respectively which accept single end input frequency up to 5MHz
with each channel containing EA, EB, and EZ signal. Each group
of EA, EB, and EZ signal contains a pair of differential signal, e.g.
the EA signal contains EA+ and EA-. See Section 4.1.1.4 for how
to use the encoder. See below for corresponding pins of encoder
input on DIN-825-GP4
CMAx Pin No
(x=1~4)
Signal Name
Description
(n=1~8)
Axis #
8 EA+ Encoder A-phase (+),(n) 1~8
7 EA- Encoder A-phase (-),(n) 1~8
17 EB+ Encoder B-phase (+),(n) 1~8
16 EB- Encoder B-phase (-),(n) 1~8
26 EZ+ Encoder Z-phase (+),(n) 1~8
25 EZ- Encoder Z-phase (-),(n) 1~8
NOTE NOTE
PCI-8258 need two DIN-825-GP4 for eight axes motion control
functions
# 1 controls axes 1 ~ 4 and #2 controls axes 5 ~ 8
CAUTION
The controller employs Line Receiver component -26LS32 with
maximum Sink Current at 20mA@5V. Do not use it at current
above this value, the component may be damaged otherwise.