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PCI-M324 User Guide
3.1.2 Servo drive DI/O interface
ALM (axis control signal / DI signal)
Servo drive alarm: when the servo drive is in error, it issues an alarm to the PCI-M324 to notify
the control system that the current motion control cannot work properly.
Pin
Mark
14
ALM_1
18
ALM_2
(1) Sink mode (NPN mode)
(2) Source mode (PNP mode)
JP1 source
November, 2017
I/O
Description
st
I
1
servo alarm
nd
I
2
servo alarm
+24V
0V
JP1 Sink
Internal Circuit
EGND
24V
JP1
IN
1 2
3
24V JP1
+24V
0V
EGND
24V
JP1
IN
1 2
3
JP1
EGND
Pin
Mark
64
ALM_3
68
ALM_4
Power Supply
24V
DC
Power supply
24V
24V
DC
DC
Internal circuit
Signal Connection Interface
I/O
Description
rd
I
3
servo alarm
th
I
4
servo alarm
Sink
3.3V
Source
3.3V
3
3-9
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