MGI M4000E series, Instruction Manual

Page: 94 / 215

83
4
PARAMETERS
<Setting of stall prevention operation level>
•
In Pr. 22, set the stall prevention operation level. Normally set it to 150% (factory
setting). Set "0" in Pr. 22 to disable the stall prevention operation.
•
To reduce the stall prevention operation level in the high-frequency range, set the
reduction starting frequency in Pr. 66 and the reduction ratio compensation factor in
Pr. 23.
Formula for stall prevention operation level
Stall prevention operation level (%) = A + B
×
[ ]
×
[ ]
where, A = , B =
•
By setting "9999" (factory setting) in Pr. 23, the stall prevention operation level is
constant at the Pr. 22 setting up to 400Hz.
<Setting of stall prevention operation selection>
Refer to the following table and set the parameter.
Pr. 156
Setting
High-
Response
Current
Limit
: Activated
: Not
activated
Stall Prevention
Operation
Selection
: Activated
: Not activated
OL Signal
Output
:
Operation
continued
:
Operation
not
continued
(Note 1)
Pr. 156
Setting
High-
Response
Current
Limit
: Activated
: Not
activated
Stall Prevention
Operation
Selection
: Activated
: Not activated
OL Signal
Output
:
Operation
continued
:
Operation
not
continued
(Note 1)
Accel
er
at
io
n
Const
a
nt
spee
d
Decel
er
at
io
n
Accel
er
at
io
n
Const
a
nt
spee
d
Decel
er
at
io
n
0 16
1 17
2 18
3 19
4 20
5 21
6 22
7 23
8 24
9 25
10 26
11 27
12 28
13 29
14 30
15 31
100
Dr
iv
in
g
R
e
g
ener
at
iv
e
Pr. 22-A
Pr. 22-B Pr. 23-100
100
Pr. 66 (Hz)
×
Pr. 22 (%)
output frequency (Hz)
Pr. 66 (Hz)
×
Pr. 22 (%)
400Hz
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