LSIS SV-iS7 series User Manual

Chapter 7 Checking and Troubleshooting
G
7-2
2) Protection by internal circuit abnormality or external signals
Type Category Details Remark
Fuse Open Latch
A failure occurs when the inverter DC fuse
responds to over current only above 30kW.
-
Over Heat Latch
A failure occurs when the temperature of the
inverter cooling fan rises over the prescribed
degree.
-
Over
Current2
Latch
A failure occurs when the DC part in the inverter
detects short circuit current.
-
External
Trip
Latch
This is an external failure signal by function
selection of the multi-function terminal. Of the
IN65~75 functions, No.3 External Trip is
selected.
-
BX Level
The inverter output is blocked by function
selection of the multi-function terminal. Of the
IN65~75 functions, No.4 BX is selected.
-
H/W-Diag Fatal
Trouble with the memory device within the
inverter(EPP ROM), analog-digital switch
output(ADC Off Set) or CPU malfunction(Watch
Dog-1, Watch Dog-2).
- EEP Err : In the event of problems during
Parameter Read/Write because of KPD EEP
ROM damage, etc
- ADC Off Set : In the event of trouble in the
current sensing area (U/V/W CT etc.)
- Gate Pwr Loss : In the event of trouble in the
power of IGBT Gate of the product 30kW or
higher. (When trouble occurs in 22kW product, it
requires checking the capacity settings of the
product)
-
NTC Open Latch
A failure occurs when abnormality is detected
with the temperature detecting sensor of the
power switch(IGBT).
-
Fan Trip Latch
A failure occurs when abnormality is detected
with the cooling fan. Operation resumes if PRT-
79 is set at 0.
-
IP54 FAN
Trip
Latch
Detected when IP54 product has a fault of
internal circulation at FAN.
Only
applied
to IP54
product

LSIS SV-iS7 series Specifications

General

Brand	LSIS
Model	SV-iS7 series
Category	Inverter
Language	English