39
40
7.2 Block Diagram
GEP series main circuit is shown in the below figure:
GEP12~20-L-10
GEP25~36-10
GEP30~35-L-10
GEP50~60-10
DC
EMC
Filte
AC
AC
Filter
AC
EMC
Filter
PV1+
PV2+
PV1-
PV2-
PV3+
PV3-
DC
DC
DC
DC
DC
DC
L1
L2
L3
N
PE
INV
BOOST
SWITCH
OUT FILTER
AC RELAY
DC
BUS
DC
EMC
Filter
AC
AC
Filter
AC
EMC
Filter
PV1+
L1
L2
L3
N
PE
INV
BOOST
SWITCH
OUT FILTER
AC RELAY
DC
EMC
Filter
DC
EMC
Filter
DC
BUS
PV2+
PV1-
PV2-
PV3+
PV4+
PV3-
PV4-
PV5+
PV6+
PV5-
PV6-
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
8 Maintenance
Regular maintenance ensures a long operating life and optimal efficiency of the entire PV plant.
Caution: Before maintenance please disconnect the AC breaker first and then disconnect DC
breaker. Wait 5 minutes until the residual voltage has been released.
8.1 Clearing The Fan
Series inverter is equipped with three fans on its left side. The fan intakes and handle covers
should be cleaned yearly with a vacuum cleaner. For more thorough cleaning, completely remove
the fans.
Disconnect the AC breaker first and then disconnect DC breaker.
Wait 5 minutes until the residual voltage has been released and the fans are no longer turning.
Disassemble the fans (refer to the below figure).
1. Loosen the five screws with a crosshead screwdriver, then remove the fans out the cabinet
about 50mm slowly.
3. Open the lockers of the three fans connectors and remove them from housing, then take the
fans away.
• Clean the ventilation grid and the fan with a soft brush, a paint brush, a cloth, or compressed
air.
• Reassemble the fans into the cabinet
• Please use towel to clean the heatsink once a year.
Summary of Contents for GEP
Page 24: ......
