Stall Prevention - LG SV-iC5 Series Instruction Manual

Overload trip
Group LED Display
Function
F56
group 1
F57
F58
Set F56 to 1.
Inverter output is turned off when motor is overloaded.
Inverter output is turned off when excessive current flows to the motor for F58 – [Overload trip time].

12.3 Stall prevention

Group LED Display
Function
F59
group 1
F60
I/O group
I54
I55
During acceleration : Motor acceleration is stopped when current exceeding the value set in F60 flows.
During constant run : Motor decelerates when current exceeding the value set in F60 flows.
During deceleration : Motor deceleration is stopped when inverter DC link voltage rises above a certain voltage
level.
F60 : The value is set as the percent of motor rated current (H33).
I54, I55: Inverter outputs signals through multi-function output terminal (MO) or relay output (30AC) when stall
prevention function is activated. Stall prevention operation can be monitored by external sequence.
F59 : Stall prevention can be set as the table below.
F59 [Stall prevention
select]
Parameter Name
[Overload trip select]
[Overload trip level]
[Overload trip time]
Parameter Name
[Stall prevention select]
[Stall prevention level]
[Multi-function output
terminal select]
[Multi-function relay select]
During
Setting
Deceleration
Bit 2
0
1
2
3
4
5
6
7
12-3
12. Protective functions
Set Min/Max
value setting
1
0/1
- 30/200
- 0/60
Set Min/Max
value setting
- 0/7
-
30/150
0/17
7
7
During constant
speed
Bit 1
- -
- -
-
-
-
-
Factory
Unit
default
0
180 %
60 sec
Factory
Unit
default
3
150 %
12
17
During
Acceleration
Bit 0
-
-
-
-
SV-iC5