LS SV-iG5H Series, Manual, Page: 178 / 226

Protective functions
164
10.4 Output phase loss protection
Group Code Parameter Name Setting Range Default Unit
Function
group 2
H19
[Input/Output phase loss
protection select]
1 0 - 3 0
Set H19 value to 1.

Output phase loss: Inverter output is shut off at the event of more than one phase loss

among U, V and W.
Input phase loss: Inverter output is blocked at the event of more than one phase loss

among R, S and T. If there is no input phase loss, output is shut off when it is time to
replace DC link capacitor.
Set H33 [Motor rated current] correctly. If the actual motor rated current and the value of H33
are different, output phase loss protection function could not be activated.
H19
[Input/Output phase
loss protection
select]
0 Not used
1 Output phase loss protection
2 Input phase loss protection
3 Input/output phase loss protection
10.5 External trip signal
Group Code Parameter Name Setting Range Default Unit
I/O group
I17
[Multi-function input terminal P1
define]
0 - 30
0
- -
I19
[Multi-function input terminal
P3 define]
18 2
I20
[Multi-function input terminal
P4 define]
19 3
Select a terminal among P1 thru P4 to output external trip signal.

Set I19 and I20 to 18 and 19 to define P3 and P4 as External A contact and B contact

►
External trip signal input A contact (N.O.): Normal open contact input. When a P3
terminal set to
“Ext trip-A” is ON (Closed), inverter displays the fault and turns off its
output.
►
External trip signal input B contact (N.C.): Normal close contact input. When a P4
terminal set to
“Ext trip-B” is OFF (Open), inverter displays the fault and turns off its
output.