Diagnostics

Behavior in the Event of Short-circuit / Overload / Under-voltage

Power Supply for Splitter Boxes and Sensors

Actuators

Short-circuit / overload

The following consequences on the FTB splitter box occur when the sensor power supply experiences a short-circuit or overload:

The diagnostics LED on the corresponding M12 connector lights up red, corresponding diagnostics data is transmitted to the master via the bus,

￿all other inputs and outputs will continue to operate correctly.

Disconnecting the M12 connector of the faulty channel results in LED and diagnostics data re-initialization.

Under-voltage / no voltage

There are three under-voltage detection levels:

12 VDC U < 18 VDC: in this case, the splitter box still operates, however: the DI-POWER LED is red,

￿appropriate diagnostics data is sent to the master via the bus

7 VDC U < 12 VDC: in this case, the I/Os no longer operate, however bus communication remains operational:

the DI-POWER LED is switched off,

￿the relevant diagnostics data is sent to the master via the bus. U < 7 VDC : in this case, the splitter no longer operates.

￿Note: Power supply to the sensor and the Advantys FTB splitter box is provided by the M12 connectors between pins 1 (+24 VDC) and 3 (0 VDC).

Short-circuit / overload

The following consequences on the FTB splitter box occur when an output experiences a short-circuit or overload:

The diagnostics LED on the corresponding M12 connector lights up red, the output status LED lights up red.

￿the corresponding diagnostics data is transmitted to the master via the bus.

To be re-activated, a default output must be set to 0 after clearing the error.

Under-voltage / no voltage

There are two under-voltage detection levels:

12 VDC U < 18 VDC: in this case, the splitter box still operates, however: the DO-POWER LED is red,

￿the relevant diagnostics data is sent to the master via the bus. U < 12 VDC:

the DO-POWER LED switches off,

￿the relevant diagnostics data is sent to the master via the bus.

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1606218 02 08/2006

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Schneider Electric IP67 manual Power Supply for Splitter Boxes and Sensors Actuators, Short-circuit / overload