Nordson iControl - Node Status; Voltage Leds

Troubleshooting
4-34
Part 1105779-04
E 2014 Nordson Corporation
Node Status
Table 4-14 FieldBus Controller Node Status LEDs
LED Meaning Troubleshooting
I/O
Green Fieldbus device operating normally.
Red During startup:
Internal bus being initialized, LED
flashes fast for 1−2 seconds.
Red After startup:
Three consecutive flashing
sequences with pauses between
each indicate errors.
Refer to the fault codes, arguments, and
description in Table 4-16, I/O Errors.
Orange Failure of input or output module
connected to controller.
Check I/O modules, replace if necessary.
Voltage LEDs
The two green LEDs in the FieldBus supply section display the supply
voltage. The (A) LED indicates the 24 V supply; the (B) LED indicates the
supply to the field side (power jumper contacts).
Table 4-15 FieldBus Controller Voltage LEDs
LED Meaning Troubleshooting
A
Green Operating voltage exists.
Off No operating voltage. Check the supply voltage (24 V and 0 V)
B
Green Operating voltage for power jumper
contacts exists.
Off No operating voltage for power
jumper contacts.
Check the supply voltage (24 V and 0 V)