The 24V voltage is checked on each of the track output connectors. A fault occurs if the voltage is less than 19V. The check is only made if the connector is unlocked.
Each output has a current limiting system (from 0.7 to 2 A). In the event of prolonged overcurrent, thermal tripping occurs.
Consequences of the fault
For a power supply fault on one of the connectors, the is set to STOP.
For a short-circuit fault on one of the track outputs, all the connector outputs are set to 0V.
Depending on the chosen of the "cam processor" :
If automatic reactivation is required (Réarm_Mod =1), reactivation of the faulty connector is automatic after 10s or else the fault must be acknowledged by the command C0_REARM or C1_REARM according to the connector.
Signalling:
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The ERR light (red) is off.
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The RUN light (green) is on.
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The CH0 light (green) flashes.
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The I/O light (red) is on.
The bit %Ir.m.MOD.ERR = 1. The READ_STS instruction applied to the module is used to refresh the status, and you will find:
The bit %Ir.m.0.ERR = 1. The READ_STS instruction applied to channel 0 is used to refresh the status, and you will find:
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Track_FLT = 1 and
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C0_Supply_Flt = 1 if connector 0 is incorrectly supplied
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C1_Supply_Flt = 1 if connector 1 is incorrectly supplied
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C0_Short_Circuit = 1 if an output in group 0 has short-circuited
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= 256 if an output in group 1 has short-circuited
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C0_Short_Circuit = 1 if an output in group 0 has short-circuited
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= 256 if an output in group 1 has short-circuited
If track output supply fault masking has been configured (Supply_Track_Msk = 1) then %IWr.m.MOD.ERR, %IWr.m.0.ERR and Track_Flt will not change to 1 on a connector supply fault.
