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Operation Level Section 5-3
This parameter measures the heater current from the CT input used for
detecting heater burnout.
This parameter measures and displays the heater current value.
• Heater burnouts and heater overcurrent are not detected if the control
output (heating) ON time is 100 ms or less.
• ffff is displayed when 55.0 A is exceeded.
• If a heater burnout detection 1 or heater overcurrent detection 1 alarm is
output, the HA indicator will light and the No. 1 display for the heater cur-
rent 1 value monitor will flash.
â– Related Parameters
Heater burnout detection 1, Heater burnout detection 2 (adjustment level):
Pages 165, and 167
HB ON/OFF (advanced function setting level): Page 203
Heater overcurrent detection 1, Heater overcurrent detection 2 (adjustment
level): Pages 165, and 167
Heater overcurrent use (advanced function setting level): Page 227
Error Displays ct1: Page 261
ct1 Heater Current 1 Value Monitor
Heater burnout, HS alarm, and
heater overcurrent detection must be
supported.
Alarm 1 must be assigned.
The Heater Burnout Detection or
Heater Overcurrent Use parameter
must be set to ON.
Monitor range Unit
0.0 to 55.0 A
Function
Monitor
See
See