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12. Protective functions
12-3 SV-iC5
Overload trip
Group LED Display Parameter Name
Set
value
Min/Max
setting
Factory
default
Unit
F56
[Overload trip select]
1
0/1 0
F57
[Overload trip level]
- 30/200 180 %
Function
group 1
F58
[Overload trip time]
- 0/60 60 sec
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 Parameter Name
Set
value
Min/Max
setting
Factory
default
Unit
F59
[Stall prevention select]
-
0/7 3
Function
group 1
F60
[Stall prevention level]
-
30/150 150 %
I54
[Multi-function output
terminal select]
7 12
I/O group
I55
[Multi-function relay select]
7
0/17
17
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.
During
Deceleration
During constant
speed
During
Acceleration
Setting
Bit 2 Bit 1 Bit 0
0 - - -
1 - -
2 -
-
3 -
4
- -
5
-
6
-
F59 [Stall prevention
select]
7