Output Phase Loss Protection; External Trip Signal - LG SV-iC5 Series Instruction Manual

12.4 Output phase loss protection

Group LED display
Function
H19
group 2
Set H19 value to 1.
This function turns off the inverter output in the event of more than one phase loss among U, V and W output.
☞ Caution :
Set H33- [Motor rated current] correctly. If the actual motor rated current and the value of H33 are different, this
function could not be activated.
12.5

External trip signal

Group LED display
I/O group
I20
I23
I24
Select a terminal among P1 thru P5 to output external trip signal.
Set I23 and I24 to 18 and 19 to define P4 and P5 as External A contact and B contact.
External trip signal input A contact (N.O) : This is a normally open contact input. When a P4 terminal
set to "Ext trip-A" is ON, inverter displays the fault and turns off its output.
External trip signal input B contact (N.C) : This is a normally closed contact input. When a terminal
set to "Ext trip-B" is OFF, inverter displays the fault and turns off its output.
Parameter Name
[Output phase
protection select]
Description
[Multi-function input terminal
P1 define]
~
[Multi-function
terminal P4 define]
[Multi-function
terminal P5 define]
Set
value
loss
1
Set
Value
~
input
18
input
19
P1 FX : I20 = 0
P4 N.O. : I23 = 18
P5 N.C. : I24 = 19
CM
12-5
12. Protective functions
Min/Max Factory
setting default
0/1 0
Min/Max Factory
setting default
0
0/24
3
4
SV-iC5
Unit
Unit