ADLINK PCI-8258 - Manual (Page 64)

50 Signal Connection
3.5 PEL/MEL Input
PCI-8254/PCI-8258 provides 4/8 End-limited switch input
channels. The Plus Limited Switch (PEL) is used as the
mechanical protection switch for movement in the positive
direction. When this switch is triggered, the PCI-8254/PCI-8258
stops its positive direction movement immediately. The Minus
Limited Switch (MEL) is used as the mechanical protection switch
for movement in the negative direction. When this switch is
triggered, the PCI-8254/PCI-8258 stops its negative direction
movement immediately. See below for corresponding pins of
mechanical limit switch signal input on DIN-825-GP4:
J1/J2 Pin No Signal Name Description Axis #
3 PEL(3) / PEL(1) Plus limit switch input (3) / (1) 3 / 1
7 PEL(4) / PEL(2) Plus limit switch input (4) / (2) 4 / 2
5 MEL(3) / MEL(1) Minus limit switch input (3) / (1) 3 / 1
9 MEL(4) / MEL(2) Minus limit switch input (4) / (2) 4 / 2
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