6 Parameters
6 - 22
E5@C Digital Temperature Controllers User’s Manual (H174)
This parameter measures the heater current from the CT input used for detecting heater burnout.
This parameter sets the current for the heater burnout alarm to be output.
ct1
Heater Current 1 Value Monitor
HB and HS alarms must be supported.
The HB ON/OFF parameter must be set to ON.
This parameter measures and displays the heater current value.
• Heater burnout is not detected if the ON time for the control output for heating is 100 ms
or less (30 ms or less if the control period is 0.1 or 0.2 s).
• ffff is displayed when 55.0 A is exceeded.
• If an alarm is output for the Heater Burnout Detection 1 parameter, the No. 1 display will
flash the Heater Current 1 Value Monitor parameter.
Related Parameters
Heater Burnout Detection 1 (Adjustment Level): Page 6-22
Heater Burnout Detection 2 (Adjustment Level): Page 6-23
HB ON/OFF (Advanced Function Setting Level): Page 6-65
Error Displays ct1: Page A-17
hb1
Heater Burnout Detection 1
HB and HS alarms must be supported.
The HB ON/OFF parameter must be set to ON.
• The heater burnout alarm is output when the heater current value falls below the setting
of this parameter.
• When the set value is 0.0, the heater burnout alarm output is turned OFF. When the set
value is 50.0, the heater burnout alarm output is turned ON.
Related Parameters
Heater Current 1 Value Monitor (Adjustment Level): Page 6-22
Heater Burnout Detection (Advanced Function Setting Level): Page 6-65
Heater Burnout Latch (Advanced Function Setting Level): Page 6-66
Heater Burnout Hysteresis (Advanced Function Setting Level): Page 6-66
Monitor range Unit
0.0 to 55.0 A
Setting
Setting range Unit Default
0.0 to 50.0 A 0.0