306
Appendix
Action
Control continues, allowing normal operation. An error message is displayed when the following items are dis-
played.
Heater current 1 value monitor
Heater current 2 value monitor
Leakage current 1 monitor
Leakage current 2 monitor
Meaning
When heater burnout, HS alarm, or heater overcurrent occurs, the No. 1 display in the applicable setting level
flashes.
Action
When a heater burnout, HS error, or heater overcurrent is detected, the HA indicator lights and the No. 1 dis-
play flashes for the applicable Heater Current 1 Value Monitor, Heater Current 2 Value Monitor, Leakage Cur-
rent 1 Monitor, or Leakage current 1 Monitor parameters in the operation level and adjustment level. Control
continues, allowing normal operation.
Meaning
When an input count value error occurs or the converted valve opening is not between −10% and 110%, the
valve opening monitor value will be displayed as “- - - -.”
Action
Check the wiring of the potentiometer.
Operation
The control outputs will turn OFF or will output the MV value set for errors. Operation will be normal if floating
control is being used. The valve opening monitor value will be displayed as “- - - -.”
Heater Burnout
HS Alarm
Heater Overcurrent
ct2
lcr1
lcr2
ct1
Potentiometer Input Error
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