400-900MHz Receiver LED troubleshooting
The troubleshooting LEDs are located on the receiver board. Use the following table to identify faults and
corrective action.
In order to reach the signaling, the receiver must be accessible, connected, and the screws located on the
receiver lid must be unscrewed using the proper screw driver whenever the LEDs are not externally
visible.
The LEDs on the receiver board are POWER, HARDOK, SIGNAL, DATA, ID, ORDER and RELAY.
Please do check the following website for further information:
https://troubleshooting.dps-rct.com/en/customer-service-center
LED
Characteristic
Description
Action
POWER
Green; pulsing
Receiver is starting up
Wait until start-up process is
finished
HARDOK
Green; continuous
Receiver hardware OK
Operate
Red; pulsing
EEPROM error; data corruption; CAN bus error (if CANERR
activates)
Reprogram EEPROM
Red; other
Electronic board hardware breakdown
Replace device
SIGNAL
LED off
No radio signal detected
-
LED on + transmitter switched
off
Radio channel occupied
Change transmitter's frequency
channel
LED on + DATA switched off
Radio channel occupied by non Danfoss system
Change transmitter's frequency
channel
DATA
LED off + SINGAL LED on
Radio error
Replace radio
Green; pulse
Receiving good frames
OK
ID
LED off + DATA LED on
No valid ID; Danfoss system nearby
If channel not occupied, check
chosen ID in the transmitter or
reset the receiver
LED on + SIGNAL LED on +
DATA LED on
Valid frames received from the transmitter; correct link
OK
RELAY
Green
STOP relay activated
-
ORDER
Green
LED ON Whenever any output is ON
-
CANERR
Red | slow pulses
CAN Error, physical Layer
Verify Connections
Red | double pulses
One expansion has Stopped working
Verify Expansion boards
Red | 4 pulses
A Transmitted CAN frame has been lost
N/A
Red | 5 pulses
A Received CAN Frame has been lost
N/A
Red | continuous
CAN Bus OFF
Verify CAN connections and
Status.
CANRUN
Blinking Green
Pre operational Status
The Controller must set the CAN
Receiver to operational Status
Solid Green
Operational Status
OK
User Manual
R06 Receiver
Troubleshooting
10 |
©
Danfoss | March 2019
BC292460489593en-000201
