Heater control modules (sine-wave converters)
State explanation
0 = OFF state
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Status = Off
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PWM LED = Off
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AC OK LED = Off
1 = ON state: input voltage within range
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Status = Off
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PWM LED = On
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AC OK LED = On
2 = Input voltage > 60 V AC and < 135 V AC (approximately)
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Status = Off
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PWM LED = On
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AC OK LED = Off
3 = Input voltage < 60 V AC (approximately)
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Status = Off
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PWM LED = Off
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AC OK LED = Off
4 = Over Temperature Protection (OTP) state
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Status = Off
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PWM LED = Off
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AC OK LED = On
5 = Latched protection state
ENWW How to read other LEDs 49