Must EP33-1012TLV, User Manual

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LCD display instruction
When inverter alarm, even it back to recovery mode. We must restart inverter to clear fault.
Fault code Fault
Fan fault
Over temperature
DC voltage too high
DC voltage too low
Output short circuit
in DC model
Output over voltage
Output over load
Output over current
Output low voltage
in DC model
Fault instruction
Fan stop run
Output short circuit:
short circut test fault 05
Output over voltage:
V
>135V/270V 500ms fault 06
output
overload:
100%<Load<110% alarm per every second (5min later inverter cutoff output
and fault 07)
110%<Load<125% alarm per every second (60s later inverter cutoff output
and fault 07)
Load>125% alarm per every second (10s later cut off output and fault 07)
Inverter Output over current:
1-3K: I >40A. 4-6K: I >80A 200ms fault 51
rms rms
Output low voltage:
V
<85V/170V 500ms fault 58
output
LED/Buzzer LCD Explanation / Possible cause
What to do
Buzzer beeps
continuously
and red LED
is on
Fault code 01 Fan stop run Check the fan.
Temperature of machine is too high. Power off and waiting for minute
Fault code 02
Fault code 03 Battery voltage is too high.
Check the battery specifications
Fault code 04 Battery voltage is too low.
Check the battery specifications
Fault code 05 Output short circuited Remove your load and restart
Fault code 06 Inverter output voltage is high.
Fault code 07 Over load
Decrease your load
Fault code 51 Output over current
Check if wiring is connected well and remove
abnormal load.
Fault code 58 Output voltage is too low. Decrease your load
Return to repair center
Trouble shooting
If machine enters into fault mode, please remove input power. And according to the table, deal with the following
problems.
BTS over temperture:
o o
T >65 C 1s 1 time for 1min then fault alarm 02; T <60 C recovery
battery battery
Inverter over temperture:
o o
T >90 C 1s1time for 1min then fault alarm 02; T <85 C recovery
inv inv
Battery over voltage:
DC>V
alarm for 30s then fault code 03
(charge 1V)/12V
Over voltage recovery:
DC<V
(charge 1V)-0.2V/12V
Low voltage alarm:
DC<V
(0.5V)/12V
Alarm recovery:
DC>V
(0.5)+0.2/12V
Low voltage fault:
DC<V
fault code 04
cutoff
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