Mitsubishi Electronics FR-V540-1.5K to 55K ユーザーズマニュアル
148
Auxiliary functions (Pr. 156, Pr. 157)
3.17 Auxiliary functions (Pr. 156, Pr. 157)
3.17.1 Stall prevention operation selection (Pr. 156
)
*1
When "Operation not continued for OL signal output" is selected, the "
" alarm code (stopped by stall prevention) is displayed and
operation stopped.
*2
Since both fast response current limit and stall prevention are not activated, OL signal and E.OLT are not output.
*3
The settings "100" and "101" allow operations to be performed in the driving and regeneration modes, respectively. The setting "101" disables
the fast response current limit in the driving mode.
Make setting to disable stall prevention activated by overcurrent and/or to prevent the inverter from resulting
in an overcurrent trip if an excessive current flows due to sudden load fluctuation or running inverter output
side ON-OFF (to disable fast response current limit that limits the current). An OL signal output delay can be
set in Pr. 157.
z Stall prevention (only during V/F control)
in an overcurrent trip if an excessive current flows due to sudden load fluctuation or running inverter output
side ON-OFF (to disable fast response current limit that limits the current). An OL signal output delay can be
set in Pr. 157.
z Stall prevention (only during V/F control)
Automatically change the output frequency of the inverter to reduce the amount of current when the current
flow exceeds the current limit value.
flow exceeds the current limit value.
z Fast response current limit
Shut off the output of the inverter to prevent overcurrent when the current flows exceeds the current limit
value.
value.
Parameter
Name
Factory Setting
Setting Range
Remarks
156
Stall prevention operation
selection
selection
1
0 to 31, 100, 101
Extended mode
speed
torque position
Set
ting
Fast
Response
Current
Response
Current
Limit
: Activated
: Not
: Not
activated
Stall
Prevention
{
{
: Activated
OL Signal
Output
Output
: Operation
continued
: Operation
not
continued
continued
*1
Accel
e
ratio
n
Co
nst
ant
sp
eed
Deceleration
0
{
{
{
{
{
1
z
{
{
{
{
2
{
z
{
{
{
3
z
z
{
{
{
4
{
{
z
{
{
5
z
{
z
{
{
6
{
z
z
{
{
7
z
z
z
{
{
8
{
{
{
z
{
9
z
{
{
z
{
10
{
z
{
z
{
11
z
z
{
z
{
12
{
{
z
z
{
13
z
{
z
z
{
14
{
z
z
z
{
15
z
z
z
z
⎯
*2
100
*3
Drivi
n
{
{
{
{
{
Reg
ene
ra
tion
z
z
z
z
⎯
*2
16
{
{
{
{
z
17
z
{
{
{
z
18
{
z
{
{
z
19
z
z
{
{
z
20
{
{
z
{
z
21
z
{
z
{
z
22
{
z
z
{
z
23
z
z
z
{
z
24
{
{
{
{
z
25
z
{
{
z
z
26
{
z
{
z
z
27
z
z
{
z
z
28
{
{
z
z
z
29
z
{
z
z
z
30
{
z
z
z
z
31
z
z
z
z
⎯
*2
101
*3
Driv
ing
z
{
{
{
{
Rege
ner
atio
n
z
z
z
z
⎯
*2
Set
ting
Fast
Response
Current
Response
Current
Limit
: Activated
: Not
: Not
activated
Stall
Prevention
{
{
: Activated
OL Signal
Output
Output
: Operation
continued
: Operation
not
continued
continued
*1
Accel
e
ratio
n
Co
nst
ant
sp
eed
Deceleration