User manual

13 LEDindicatorsandtroubleshooting | I/O modules
481Manual u-remote1432790000/08/12.2015
Module LED Status Recommended action
Communication modules
UR20-1COM-232-485-422
Status LED Red:
– Erroor in the supply voltage at input current path
– Communication error on the system bus
– There is a new diagnostic message
– Check that the module has been snappeed into place
properly
– Check the supply voltage
Channel LED
1.1, 1.2 Yellow: RS232 has been parameterised
1.1 Yellowashing:Receiving data (RS232)
1.2 Yellowashing:Transmitting data (RS232)
3.1 ... 3.4 Yellow: RS422 has been parameterised
3.1, 3.2
3.3, 3.4
Off
Yellow: RS485 has been parameterised
3.3 Flashing yellow: Receiving data (RS485 or RS 422)
3.4 Flashing yellow: Transmitting data (RS485 or RS 422)
4.1 Green: Supply voltage OK (5VDC)
4.3 Green: Supply voltage OK (24VDC)
UR20-1COM-SAI-PRO
Status LED Red:
– Erroor in the supply voltage at input current path
– Communication error on the system bus
– There is a new diagnostic message
– Check that the module has been snappeed into place
properly
– Check the supply voltage
Channel LED
3.1
Yellowashing(0.5Hz):
– Subbus communication is being initialised
Yellow:
– Subbus communication OK
– Please wait
3.2 Red:
– Supply voltage error – Check the power supply unit and the cabling
3.3 Green:
– Supply voltage OK
3.4 Red:
– Subbus communication error – Check the connected subbus modules and sensors