Too long BI/O bus activation (fault code 12)
Figure: The system indicates that the BI/O bus has remained activated for longer than three seconds
This fault code indicates that the system’s BI/O bus has remained activated for too long for
normal operation.
Potential
causes:
1. A sensor connected to the unit via the BI/O bus has remained activated for longer than
three
seconds.
Corrective
measures:
•
Check the physical location of the activated sensor.
•
Strong direct light may activate the sensor
•
If the arc sensor is not exposed to direct light, remove one of the sensor conductors to
check that the sensor cable is not short-circuited. If the fault disappears, the sensor or
cable is probably faulty. In this case, replace the faulty sensor.
•
In the overcurrent unit, check the range of the overcurrent setting and whether the
check that the sensor cable is not short-circuited. If the fault disappears, the sensor or
cable is probably damaged. In this case, replace the faulty sensor.
Communication fault (fault code 13)
Figure: The system indicates a disturbance in the communication between units.
This fault code indicates faulty operation of the system’s communication bus.
Potential
causes:
1. The modular cable between units or external wiring has become disconnected or faulty.
Corrective
measures:
•
Check the connection and status of the modular cable between the units. Maybe there
is a loose contact or damaged cable in the line.
26
ARC-EM/2.0
ARC-EM/2.0
Summary of Contents for ARCON 2.0 Series
Page 51: ...51 7 6 Block diagram 7 6 1 ARC EM 2 0 Figure Connections of ARC EM 2 0...
Page 54: ...54 7 6 4 ARC EL3 2 0 7 6 5 ARC EC1 2 0...
Page 64: ...64 9 Construction 9 1 Dimensional drawings 9 1 1 ARC EM 2 0 panel and semi flush mounting...
Page 65: ...65 9 1 2 ARC EP10 2 2 0 din rail mounting...
Page 66: ...9 1 3 ARC EP10 2 0 din rail mounting 66...
Page 67: ...67 9 1 4 ARC EL3 2 0 din rail mounting...
Page 68: ...68 9 1 5 ARC EC1 2 0 din rail mounting...
Page 69: ...69 9 1 6 Fiber sensor mounting r min 50 mm...
Page 70: ...70 9 1 7 Point sensor mounting...
Page 82: ...82 10 Application examples 10 1 Applications 10 1 1 With a main busbar system...
Page 83: ...83 10 1 2 With two main busbar systems...
Page 84: ...84 10 1 3 With two main busbar systems and additional zone selection 4 zones...
Page 85: ...85...
