Delta RPI-H3 Service Manual Page 49

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43
Sensor Fail
3. Detection circuit malfunction
3. Check the detection circuit inside the
inverter
A45: HW
OOCP
1. WB1 WB2 misconnection.
2. Detection circuit malfunction
1. Check the connection of WB1 and WB2.
2. Check the detection circuit inside the
inverter
A50:Zero
Cross Circuit
Fail
The detection circuit for
synchronal signal malfunction
Check the detection circuit for synchronal
signal inside the inverter
A56:Hardware
Incompatibility
1. HW power rating incorrect 1. Check comm. HW power rating info.
A60: DC Curr
Over Rating
1. Switching device in boost is
defective
2. Driver for boost is defective
3. Input current detection circuit
malfunction
1. Check all switching device in boost
2. Check the driver circuit for boost inside
the inverter
3. Check input current detection circuit
A70: DC Curr
Transient Over
1. Switching device in boost is
defective
2. Driver for boost is defective
3. Input current detection circuit
malfunction
1. Check all switching device in boost
2. Check the driver circuit for boost inside
the inverter
3. Check input current detection circuit
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