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EVENT SKIPPED ALARM
An event skipped alarm is set when a second biocide or timer event occurs while one event is still running (either in prebleed, biocide-add
or post-biocide add lockout in the case of the biocide timer mode). An event skipped alarm is also set when the timer relay never turns
on during an event because of an interlock condition. The alarm is cleared when the relay is next activated for any reason (the next
timer event or HAND mode or “activate with” force on condition).
Possible Cause
Corrective Action
Incorrect programming
Reprogram to eliminate overlapping events
Long duration interlock condition
Normal operation
Long duration prebleed
Decrease prebleed time
Increase bleed flow rate
Reprogram to eliminate overlapping events
SENSOR FAULT
This error indicates that the signal from the sensor is no longer valid at all. This error condition will stop control of any output using
the sensor.
Possible Cause
Correction Action
Sensor wires shorted
Disconnect short
Faulty sensor
Replace sensor
Faulty controller
Replace or repair controller
INPUT FAILURE
This alarm indicates that the sensor input circuit is no longer working, or that one of the inputs used to calculate a virtual input is in a
Sensor Fault condition. This error condition will stop control of any output using the input.
Possible Cause
Correction Action
Faulty controller
Replace or repair controller
If using virtual inputs, sensor fault of one of the inputs
See Sensor Fault troubleshooting above
BATTERY POWER LOW
This alarm indicates that the battery which holds the date and time in memory is below 2.4 VDC.
Possible Cause
Correction Action
Faulty battery
Replace battery
SYSTEM TEMP LOW
This alarm indicates that the temperature inside the controller is below -10 °C.
Possible Cause
Correction Action
Low ambient temperatures
Provide heat for the controller
SYSTEM TEMP HIGH
This alarm indicates that the temperature of the controller or sensor processor IC is above 75 °C, or that the temperature of the Eth-
ernet card processor IC is above 85 °C.
Possible Cause
Correction Action
High ambient temperatures
Provide cooling for the controller
High power draw
Do not use the controller’s 24VDC to power more than 1.5W total
DISPLAY ERROR
This alarm occurs if the user interface gets lost
Possible Cause
Correction Action
Pressing icons very quickly
Exit out of the screen and continue programming
ETHERNET CARD FAILURE
This alarm occurs if the Ethernet circuit board fails
Possible Cause
Correction Action
Ethernet card locked up
Try a power cycle to reset it
Faulty Ethernet circuit
Replace Controller Board
WEB SERVER FAILURE
This alarm occurs if the web server on the Ethernet circuit board fails
Possible Cause
Correction Action
Web server locked up
Try a power cycle to reset it
Faulty Ethernet card
Replace Ethernet card
