ADLINK PCI-8164 - Manual (Page 62)

50 Signal Connections
3.7 Alarm Signal ALM
The alarm signal ALM indicates the alarm status from the servo
driver. The signal names, pin numbers, and axis numbers are
shown in the table below.
The input alarm circuit diagram is provided. The ALM signal is
usually generated by the servomotor driver and is ordinarily an
open collector output signal. An external circuit must provide at
least 5 mA current sink capabilities to drive the ALM signal. For
more details of ALM signal operations, refer to section 4.2.2.
CN2 Pin No Signal Name Axis #
9 ALM1 1
27 ALM2 2
59 ALM3 3
77 ALM4 4