ADLINK Technology PCI-8254, User Manual

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44 Signal Connection
3.2 Pulse Command
In addition to the analog command outputs described in Section
3.1, PCI-8254/PCI-8258 provides 4/8 pulse control command
channel. Each pulse control command can support up to 6.5MHZ
output frequency.
In general, a servo drive can be set to P/S/T (position/speed/
torque) mode. When control mode is set to P mode, then the pulse
command control of PCI-8254/PCI-8258 will be used for
open-loop control.
In addition to servo drive, the Stepper drive also employs pulse
command interface as the primary control input commands. See
below for corresponding pins of pulse command output against
differential pulse signals to DIN-825-GP4:
CMAx Pin No
(x=1~4)
Signal Name
Description
(n=1~8)
Axis #
6 OUT+ Pulse signal, (+) (n) 1~8
5 OUT- Pulse signal, (-) (n) 1~8
24 DIR+ Dir. Signal, (+) (n) 1~8
23 DIR- Dir. Signal, (-) (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