157
Output Time Out
This error message indicates that the relay output has been activated for an amount of time that
exceeds the user-programmed maximum allowable time. The output relay will be forced off until
the “Reset Timeout” button found in that Relay Output Page is clicked.
Possible
Causes
Corrective
Actions
Maximum time is set too low for
Go to the Relay Output Page and increase the
normal circumstances
programmed value for the maximum time.
.
Process value was higher/lower than
Go to the Relay Output Page and increase the
normal.
programmed value for the maximum time until
the process value is brought back down to
normal
levels.
Control direction is set incorrectly.
Go to the Relay Output Page and check the
setting for the control direction.
Faulty control device attached to relay.
Repair or replace control device.
Relay is interlocked when it should not.
Evaluate switch for Interlock.
Fuse blown.
Replace fuse (F2 or F3).
Faulty wiring of control device.
Correct wiring.
Faulty relay.
Replace the relay interface board.
You are feeding based on flow meter volume,
Go to the Flow Meter Input Page and verify
and you are getting false contacts.
that the flow total is increasing even when the
solution is not flowing.
Disconnect the flow meter cable from the
controller and verify that the flow total stops
increasing. Route the flow meter cable away
from any AC voltage and make sure that the
cable is shielded.
Faulty Sensor.
Clean and calibrate the electrode as described
in Section 7 above. If the calibration fails,
see troubleshooting for sensor calibration
failure.
Chemical supply is empty.
Refill chemical supply.
Содержание WebMaster
Страница 19: ...15 Figure 1a Typical Installation Cooling Tower ...
Страница 20: ...16 Figure 1b Typical Installation Boiler Intermittent Sampling ...
Страница 21: ...17 Figure 1c Typical Installation Boiler Continuous Sampling ...
Страница 30: ...26 Figure 7 Wiring Diagram for Optional Digital Communications ...