Stall Prevention Function And Current Limit Function - Mitsubishi FR - S500 Instruction Manual

2
.3.12

Stall prevention function and current limit function

You can make settings to disable stall prevention caused by overcurrent and to
disable the fast-response current limit (which limits the current to prevent the
inverter from resulting in an overcurrent trip if an excessive current occurs due to
sudden load variation or ON-OFF, etc. in the output side of the running inverter).
Stall prevention
If the current exceeds the limit value, the output frequency of the inverter is
automatically varied to reduce the current.
Fast-response Current limit
If the current exceeds the limit value, the output of the inverter is shut off to
prevent an overcurrent.
Parameter
Stall prevention
21
function selection
Fast-
Response
Current
Pr. 21
Limit
Set-
:
ting
Activated
: Not
activated
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Factory
Name
Setting
Stall
Prevention
OL Signal
Operation
Output
Selection
:
:
Activated Operation
: Not
continued
activated
:
Operation
not
continued
(*)
Setting
Range
0 to 31,
0
100
Fast-
Response
Current
Pr. 21
Limit
Set-
:
ting
Activated
: Not
activated
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
68
Remarks
Setting is enabled when
Pr. 30 = "1".
Stall
Prevention
Operation
Selection
:
Activated
: Not
activated
OL Signal
Output
:
Operation
continued
:
Operation
not
continued
(*)