5 end-limit signals pel and mel, End-limit signals pel and mel – ADLINK PCI-8102 User Manual

Page 38

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Signal Connections

27

PCI-8102

3.5

End-Limit Signals PEL and MEL

There are two end-limit signals PEL and MEL for each axis. PEL
indicates the end limit signal is in the plus direction and MEL indi-
cates the end limit signal is in the minus direction. The signal
names, pin numbers, and axis numbers are shown in the table
below:

A circuit diagram is shown in the diagram below. The external limit
switch should have a contact capacity of +24V @ 8mA minimum.
Either ‘A-type’ (normal open) contact or ‘B-type’ (normal closed)
contact switches can be used. To set the active logic of the exter-
nal limit signal, please refer to the explanation of
_8102_set_limit_logic function.

P1 Pin No

Signal

Name

Axis

#

P1 Pin No

Signal

Name

Axis

#

20

PEL0

1

21

MEL0

1

54

PEL1

2

55

MEL1

2

Inside 8102

P1

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