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User Manual
1.3.4 PID Function
SG125HV-30 provides Anti-PID function and PID Recovery function, and
achieves raising the potential between the negative electrode of PV array and
earth by using internal PID function module.
PV Strings
Anti-PID Function
When the inverter is running, the PID function module suppresses the PID effect
by raising the potential between the negative electrode of PV array and earth to
a positive value.
PID Recovery Function
When the inverter is not running, the PID function module imposes a reverse
potential to the PV modules so as to recover the PV modules in which PID effect
has occurred.
If the PID function is to be enabled
array of power station to which SG125HV-30 belongs must be P-
type. Otherwise, the PID function will be abnormal. If other types of
PV modules need to be selected, please contact SUNGROW.
Raise the potential between the negative
electrode of PV array and earth
1 Product Description
ensure
all PV modules in the
,
that
17
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