HEIDENHAIN iTNC 530 HSCI - I;O Modules PLD-H and PLA-H

July 2013 3.7 iTNC 530 HSCI connection overview 223
3.7.16 I/O modules PLD-H and PLA-H
PLD-H 16-08-00
Pin layout Connector Function Page
X11 PLC inputs, channel A 275
X12 PLC inputs, channel A 275
X21 PLC outputs, channel A 277
Diagnosis (meanings of the LEDs):
 Red (X11/pin 1) status LED
• Flashes: status of I/O module OK
• Continuously on or off: error on I/O module
 Yellow (per output): Status of the output
Error recognition:
 Short circuit: A short circuit is reported when a current >= 20 A flows
for approximately 3 ms. Both the output-specific message and the group
message are modal.
After the short circuit has been removed, the PLC must reset the output
before it can be activated again.
PLD-H 08-16-00
Pin layout Connector Function Page
X11 PLC inputs, channel A 275
X21 PLC outputs, channel A 277
X22 PLC outputs, channel A 277
Diagnosis (meanings of the LEDs):
 Red (X11/pin 1) status LED
• Flashes: status of I/O module OK
• Continuously on or off: error on I/O module
 Yellow (per output): Status of the output
Error recognition:
 Short circuit: A short circuit is reported when a current >= 20 A flows
for approximately 3 ms. Both the output-specific message and the group
message are modal.
After the short circuit has been removed, the PLC must reset the output
before it can be activated again.
X11
X12
X21
X11
X21
X22