ZGR SOLAR STR 250
Operation manual
www.zigor.com
38
Consistency Frequency Fault
F23-1
Inconsistent frequency between primary CPU and
secondary CPU.
Loss of auxiliary power supply
F25-1
Auxiliary power loss, machine protection.
IGBT Fault
F26-1
IGBT Fault,
machine protection.
DSP Communication Lost
F32-1
DSP communication faulty on.
Table 5-1 Error message prompt
ALARM
CODE
DESCRIPTION
Low speed of fan group1
W00-1
Alarm due to low speed of fan group 1.
Low speed of fan group 2
W01-1
Alarm due to low speed of fan group 2.
Low speed of fan group 3
W02-1
Alarm due to low speed of fan group 3.
Zero power
W03-1
Zero power alarm is normal when light is weak and
power is very small.
Clock alarm
W16-1
Clock chip failure.
Lightning protector alarm
W21-1
Alarm due to triggering action of lightning protector.
Table 5-2 Alarm information
Moreover, in Table 5-3 are shown the frequent errors and the solutions:
ERROR MESSAGE
SOLUTION
Error of low and high grid power voltage; error of
low and high grid power frequency (F00-F03-1)
(1) Confirm whether the safety standards selected for the
machine are in compliance with local grid requirements.
(2) Inspect whether the AC output terminal is connected
reliably and measure whether the voltage is normal with
a multimeter.
(3) Disconnect the PV input, restart the machine, and see if
the machine can return to normal.
(4) Contact
ZIGOR
if the fault still exists.
Bus voltage is high or low (F04-F05-1)
(1) Please check the setting of input mode.
(2) Disconnect PV input and restart the inverter and check
whether fault still exists.
(3) Contact
ZIGOR
if the fault still exists.
Imbalanced bus-bar voltage (F06-1)
(1) Please check the setting of input mode.
(2) Confirm the bus-bar voltage imbalance through the LCD
display panel. Restart the machine several times every
few minutes to see if the machine can return to normal.
(3) Contact
ZIGOR
if the fault still exists.
