10 Configuring the control’s inputs and outputs
62 PHLOX II Ignition Control System
PHLOX II offers the possibility to supply the connected sensors and setpoint adjusters
with a 5Vor a 24V voltage from the control unit. This must be communicated to the
control with parameter
5510 AIWithSensorSupply = 1 sensor is powered with 5V / 24V by the control
5511 AISupply24VOr5V = 0/1 sensor is powered with 5V (0) or 24V (1)
When a sensor is connected to such a reference, the relevant reference voltage is moni-
tored. The supplied voltage is measured back and displayed in parameter 3512 Sensor-
SupplyAI1
Once an error is detected, the error parameter associated with the analogue input and
with the relevant sensor is set. To learn more about what action to take in the event that
any such error occurs, please refer to the chapter. If an analogue input is not used due to
not being assigned to a sensor it will not be monitored for errors.
The following table provides an overview of possible errors:
Signal short circuit to earth
- The measuring value of the relevant input value is below the lower error
threshold.
Reaction according to the configuration of sensor error handling.
Check sensor cable.
Check sensor.
Check parameters for error thresholds.
Signal short circuit to supply voltage
- The measuring value of the relevant input value is below the upper error
threshold.
Reaction according to the configuration of sensor error handling.
Check sensor cable.
Check sensor.
Check parameters of error thresholds.
Sensor supply voltage, cable break or short circuit to earth
- The measured value of the relevant reference voltage is below 4V (5V sup-
ply) or 20V (24V supply).
- Monitoring active only if sensor referencing is active.
Reaction according to the configuration of sensor error handling.
Check sensor cable.
Check sensor.
Sensor supply voltage, short circuit to supply voltage
- The measured value of the relevant reference voltage is greater than 6V
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