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12 Heater Break Alarm (HBA)
12.1 HBA Wiring Example
SSR
+
-
AC POWER
CT
Heater
Sensor
OUT1
AL1
(HBA Relay)
(CT Input)
(Sensor Input)
12.2 HBA Function Description
HBA function detects the AC current flowing through the heater by a Current Transformer
(CT), and compares the CT input value and HBA set value. When OUT1 is ON and CT
input value is less than HBA set value during 5 seconds, AL1 is activated. Otherwise, AL1
is not activated.
The AC current flowing through heater can also be monitored in HBA setting mode.
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