Sermatec SMT-5K-TL-LV, Руководство пользователя, Страница: 39 / 46

33
PV- Insulation Impedance
Fault
Insulation
impedance is less
than the limit value
1. Make sure the insulation
impedance of the PV module is
greater than 34kΩ.
If step 1 is done but error still,please
contact the Sermatec service team.
PV Bus Software Start Up
Failure
Inverter Damage
1. Occasional failures can
automatically recover.
2. The inverter cannot automatically
recover, shut down, and turn on. If it
still cannot self-recover, please
contact the Sermatec service team.
PV Power is not
enough
Increase PV power to effective
value.
PV Bus Hardware Start Up
Failure
Inverter Damage
1. Occasional failures can
automatically recover.
2. The inverter cannot automatically
recover, shut down, and turn on. If it
still cannot self-recover, please
contact the Sermatec service team.
Relay Check Failure
Internal relay cannot
close or open
normally
1. Occasional failures can
automatically recover.
2. The inverter cannot automatically
recover, shut down, and turn on
when the power grid is normal. If it
still cannot self-recover, please
contact the Sermatec service team.
IGBTA/B/C Temperature
Sensor Fault
The actual ambient
temperature is too
low
No operation is required. When the
temperature rises, it will recover by
itself.
Temperature sensor
failure
1. Occasional failures can
automatically recover.
2. The inverter cannot automatically
recover, shut down, and turn on. If it
still cannot self-recover, please
contact the Sermatec service team.
IGBTA/B/C Temperature Too
High Fault
There are something
around affecting
heat dissipation.
Check if there are anything around
that affects heat dissipation, if yes,
remove the obstacle.