Error no. Explanation
Inverter behavior
Corrective measures
S1
S2
R
6452
Measured AC voltage of the utility
grid is less than inverter voltage.
W
W
‒
• Contact Service partner.
6453
AC voltage of grid limit monitoring
is faulty.
W
W
‒
• Contact Service partner.
6454
AC current is faulty.
W
W
‒
• Contact Service partner.
6455
AC voltage is faulty.
W
W
‒
• Contact Service partner.
6456
Pre-charging circuit of DC link is
defective.
W
W
‒
• Contact Service partner.
6457
Capacitor self-test has failed.
Q
Q
‒
• Contact Service partner.
6461
Insulation monitoring device has
not adopted threshold.
15
min
15
min
x
• Check the insulation monitoring device
and cabling.
6471
Online capacitor self-test has
failed.
Q
Q
x
• Contact Service partner.
6472
Endless loop between online and
offline capacitor test
Q
Q
x
• Contact Service partner.
6501
Interior temperature of inverter is
too high.
30 s
1 min
‒
• Check function of the fans.
• Clean the fans.
• Clean clogged fan inlets and ventilation
plates.
6502
Temperature of inverter bridge is
too high.
30 s
1 min
‒
6508
Outside temperature is too high.
30 s
1 min
‒
6605
The fast stop was tripped due
overtemperature in the switch cabi-
net.
30 s
1 min
‒
• Contact Service partner.
7001
Cable break or short circuit at in-
verter temperature sensor
W
W
‒
• Check the wiring of the temperature
sensor.
• Contact Service partner.
7002
W
W
‒
7004
W
W
‒
7006
W
W
‒
7501
Interior fan is defective.
W
W
‒
• Check function of the fans.
• Clean the fans.
• Clean clogged fan inlets and ventilation
plates.
7502
W
W
‒
7503
Inverter bridge fan is defective.
W
W
‒
7507
Motor-protective circuit breaker of
fan has tripped.
W
W
‒
7510
Interior fan is defective.
W
W
‒
9 Troubleshooting
SMA Solar Technology AG
System Manual
129
MVPS22JP-SH-en-11
Summary of Contents for 1000-1SC
Page 257: ......