Advantech PCI-1240, User Manual

Page: 49 / 72

41 Appendix A
A.2 Digital Input/Output
Input Signals Over Travel-
ing Limit
Switch Input* nLMT+ and nLMT-
External
Deceleration/
Instantaneous
Stop Signal nIN1 ~ 3
Input Signal for
Servo Motor
Drives* nALARM (servo alarm); nINPOS (position
command completed)
Emergency
Stop EMG - one emergency stop input
Max. Input Fre-
quency 4 kHz
Input Voltage Low 3 V DC max.
High 10 V DC min.
50 V DC max.
Input Current 10 V DC 1.70 mA (typical)
12 V DC 2.10 mA (typical)
24 V DC 4.40 mA (typical)
48 V DC 9.00 mA (typical)
50 V DC 9.40 mA (typical)
Protection 2,500 V DC photo coupler isolation and
RC filtering
General Pur-
pose Output
Signals Output Signal nOUT4 ~ 7
Output Voltage Open Collector 5 ~ 40 V DC
Sink Current
200 mA max./channel
Protection 2,500 V DC photo coupler isolation
Note *: “n” represents the axis (X, Y, Z or U) that is
concerned