Chapter 12. Protective functions
12.6 Inverter Overload
Inverter overload prevention function is activated when the current above inverter rated
current flows.
Multi-function output terminal (MO) or Multi-function relay (30AC) is used as the alarm
signal output during inverter overload trip.
Group
LED
display
Parameter Name
Set
value
Min/Max
Range
Factory
default
Unit
I54
[Multi-function output
terminal select]
7 12
I/O group
I55
[Multi-function relay
select]
7
0/17
17
12.7 Frequency command loss
Group
LED
display
Parameter Name
Set
value
Min/Max
setting
Factory
default
Unit
I16
[Criteria for analog
input signal loss]
0
0/2 0
I62
[Drive mode select after
loss of frequency
command]
-
0/2 0
I63
[Wait time after loss of
frequency command]
-
1.0 Sec
I54
[Multi-function output
terminal select]
11 12
I/O group
I55
[Multi-function relay
select]
11
1/12
0/17
17
Select the Drive mode when frequency reference set via V1 and I or (V1+I) input terminal or
communication option is lost.
I16: This is to set the criteria for analog input signal loss when frequency reference is given by V1,
I, V 1+I or Communication option.
0 Disabled (Does not check the analog input signal loss)
1 When less than the value set in I 2, I 7, I 12 is entered
I16 [Criteria for analog
input signal loss]
2 When below the value set in I 2, I 7, I 12 is entered
EX 1) The inverter determines that the freq reference is lost when DRV- Frq is set to 3 (Analog V1
input), I 16 to 1 and analog input signal is less than half of the minimum value set in I 7.
EX 2) The inverter determines that the freq reference is lost when DRV- Frq is set to 6 (V1+I), I 16
to 2 and V1 input signal is either below the minimum value set in I 7 or I input value is less than the
I 12 value.
