Delta RPI M30A Operation And Installation Manual page 62

Error message and Trouble Shooting
Message
1. Actual Solar2 voltage is over
Solar2
1000Vdc
High
2. Detection circuit malfunction
(E31)
1. PV array insulation fault
2. Large PV array capacitance
Insulation
between Plus to Ground or
(E34)
Minus to Ground or both.
3. Detection circuit malfunction
Table 7-1 Error Message
Message
1. Actual Solar1 voltage is under
the limit
Solar1
2. Some devices were damaged
Low
inside the inverter if the actual
(W01)
Solar1 voltage is close to "0"
3. Detection circuit malfunction
1. Actual Solar2 voltage is under
the limit
Solar2
2. Some devices were damaged
Low
inside the inverter if the actual
(W02)
Solar2 voltage is close to "0"
3. Detection circuit malfunction
1. One or more fans are locked
2. One or more fans are defective
HW FAN 3. One ore more fans are
disconnected
(W11)
4. Detection circuit malfunction
1. Inverter was struck by lighting.
2. One or more SPD are defective
3. One or more SPD are
SPD Fail
disconnected
4. Detection circuit malfunction
Table 7-2 Warning Message
Possible cause
Possible cause
ERROR
1. Modify the solar array setting, and
make the Voc less than 1000Vdc
2. Check the detection circuit inside the
inverter
1. Check the insulation of Solar inputs
2. Check the capacitance, dry PV panel
if necessary
3. Check the detection circuit inside the
inverter
Warning
1. Check the Solar1 voltage connection
to the inverter terminal
2. Check all switching devices in boost1
3. Check the detection circuit inside the
inverter
1. Check the Solar2 voltage connection
to the inverter terminal
2. Check all switching devices in boost2
3. Check the detection circuit inside the
inverter
1. Remove the object that stuck in the
fan(s)
2. Replace the defective fan(s)
3. Check the connections of all fans
4. Check the detection circuit inside the
inverter
1. Check inverter's status
2. Replace the defective SPD
3. Check the connections of SPDs
4. Check the detection circuit inside the
inverter
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Action
Action