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MA5:5
V Range 501 l 651 l 801 Maintenance Manual
Johnston Sweepers Limited
Chapter - Pneumatic System
Indicator Status
(J) - Error LED (Red) This LED indicates the status of the CAN physical and indicates errors due
to missing CAN messages (SYNC, GUARD or HEARTBEAT).
(K) - Run LED (Red/Green) This LED indicates the status of the CANopen network state machine.
(L) - 5v (Green) This LED will only be energised when the Network power is connected to the
Network connector, indicating that the logic circuit of the module is powered.
(M) - 24v (Green) This LED will only be energised when chassis voltage is applied to the valve
power terminal of the power supply connector.
Page Issue A
Indicator status during powering up and commissioning
Condition 24v 5v Error LED Run LED
Power up On On Single ash Single ash green/red
Auto baud rate detection active On On Flickering Flickering green
Changing of address during commissioning On On Flickering Flickering green
Device in a pre-operation state On On Off Blinking green
Device in a stopped state On On Off Single ash green
Device in an operation state On On Off On green
Indicator status during CAN message errors
Condition 24v 5v Error LED Run LED
Too many error frames received On On Single ash Dependent on device state
Heartbeat event has occurred On On Double ash Dependent on device state
A sync message has not been received On On Triple ash Dependent on device state
Bus off On On On Dependent on device state
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