Mitsubishi Electric FR-E 500 Instruction Manual page 160

<Setting>
Refer to the following tables and set the parameter as required.
Stall Prevention
Operation Selection
Fast-
': Activated
Response
"
Current
Pr. 156
Limit
Setting
': Activated
"
: Not
activated
' '
0
"
'
1
"
'
2
" "
3
' '
4
"
'
5
"
'
6
" "
7
' '
8
"
'
9
"
'
10
" "
11
' '
12
"
'
13
"
'
14
" "
15
Note 1: When "Operation not continued for OL signal output" is selected, the "E.OLT"
alarm code (stopped by stall prevention) is displayed and operation stopped.
(Alarm stop display "E.OLT")
2: If the load is heavy, the lift is predetermined, or the acceleration/deceleration
time is short, the stall prevention may be activated and the motor not
stopped in the preset acceleration/deceleration time. Therefore, set optimum
values to the Pr. 156 and stall prevention operation level.
3: In vertical lift applications, make setting so that the fast-response current
limit is not activated. Torque may not be produced, causing a gravity drop.
Always perform test operation.
Stall prevention operation performed during acceleration may increase
the acceleration time.
Stall prevention operation performed during constant speed may cause
sudden speed changes.
Stall prevention operation performed during deceleration may increase
the deceleration time, increasing the deceleration distance.
Pr. 158 & & Refer to Pr. 52. & &
OL Signal
Output
':
: Not activated Operation
continued
"
:
Operation
not
continued
(Note 1)
' ' '
' ' '
' ' '
' ' '
"
' '
"
' '
"
' '
"
' '
"
' '
"
' '
"
' '
"
' '
" "
'
" "
'
" "
'
" "
'
Fast-
Response
Current
Pr. 156
Limit
Setting
': Activated
"
: Not
activated
'
16
"
17
'
18
"
19
'
20
"
21
'
22
"
23
'
24
"
25
'
26
"
27
'
28
"
29
'
30
"
31
'
100
"
CAUTION
145
PARAMETERS
Stall Prevention
OL Signal
Operation Selection
Output
': Activated
':
"
: Not activated Operation
continued
"
:
Operation
not
continued
(Note 1)
"
' ' '
"
' ' '
" "
' '
" "
' '
" "
' '
" "
' '
" " "
'
" " "
'
" "
' '
" "
' '
" " "
'
" " "
'
" " "
'
" " "
'
" " " "
" " " "
' ' ' '
" " "
'
4