Installation Manual

Problem
Possible cause and
troubleshooting
String voltage is higher than number of optimizers
WARNING!
If the measured voltage is too high, the installation
may not have a safe low voltage. PROCEED WITH
CARE! A deviation of ±1% per string is reasonable.
Si la tension mesuree est trop haute, la tension basse
de securite pourrait manquer dans l’installation.
REDOUBLEZ DE PRECAUTION. Une deviation de
±1% par string est raisonnable.
Extra power optimizer(s) connected in the
string (not applicable to smart modules).
Check if an extra power optimizer is connected
in the string. If not – proceed to next solution.
A module is connected directly to the string,
without a power optimizer (not applicable to
smart modules).
Verify that only power optimizers are
connected in the string and that no module
outputs are connected without a power
optimizer. If the problem persists, proceed to
the next step.
Power optimizer(s) malfunction.
o
Disconnect the wires connecting the power
optimizers in the string.
o
Measure the output voltage of each power
optimizer to locate the power optimizer that
does not output 1V safety voltage. If a
malfunctioning power optimizeris located,
check its connections, polarity, module,
and voltage.
o
Contact SolarEdge Support. Do not
continue before finding the problem and
replacing the malfunctioning power
optimizer. If a malfunction cannot be
bypassed or resolved, skip the
malfunctioning power optimizer, thus
connecting a shorter string.
Appendix A: Errors and Troubleshooting
Single Phase Inverter with HD-Wave Technology Installation MAN-01-00306-1.1
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