Troubleshooting - APsystems OPT700 Installation & User Manual

Troubleshooting

Qualified personnel can use the following troubleshooting steps if the
PV system does not operate correctly.
WARNING: Only qualified personnel should directly handle the
APsystems optimizer.
WARNING: Do not attempt to repair the APsystems Optimizer. If
troubleshooting methods fail, please return the optimizer to your
distributor for replacement.
When Verifying Proper Power Optimizer Connection:
1. When measuring the PV open circuit voltage, one or more
of the optimizers voltage value inconsistent with others.
Reason
One or more of the PV modules are not
connected properly to their optimizer.
There is something wrong with PV Power
Optimizer.
2. The PV open circuit voltage is zero.
Reason
One or more of the optimizers are
unconnected or skipped during the string
connection process.
3. The PV open circuit voltage is not zero but is lower than the
Reason
One or more of the PV modules are not
connected properly to their
optimizer.
One or more of the optimizer are not
connected properly to their polarity.
Maintenance
No need to Maintenance.
Adjustment
No need to Adjustment
.
Connect all the PV modules to their
distributor for replacement or contact
quantity of optimizer power.
Connect all the PV modules to their
Make sure all the optimizer are connected
Solution
optimizers securely.
Please return the optimizer to your
APsystems Customer Support to
service.
Solution
Connect all the power optimizers.
Solution
optimizers securely.
properly to their polarities.
OPT700/OPT700L Installation/User Manual
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