Mitsubishi Electric FR-D720S SC EC, Instruction Manual

Page: 154 / 512

Parameter overview Parameter
6 - 4
Func-
tion
Parameter
Name
Incre-
ments
Initial
value
Setting
range
Description
Para-
meter
copy
Para-
meter
clear
All
Para-
meter
clear
Refer
to
page
Rel
a
ted
pa
ramet
e
rs
✔
: enabled
—: disabled
MRS input
selection
17 MRS input selection 1 0
0 Open input always
✔ ✔ ✔
6-91
2
Normally closed input (NC contact
input specifications)
4
External terminal: Normally closed
input (NC contact input specifica-
tions)
Communication: Normally open
input
—
18 Refer to Pr. 1 and Pr. 2
19 Refer to Pr. 3
20 Refer to Pr. 7 and Pr. 8
Stall prevention operation
22
Stall prevention
operation level
0.1% 150%
0
Stall prevention operation
selection becomes invalid.
✔ ✔ ✔
6-33
0.1–200%
The stall prevention operation level
can be set.
23
Stall prevention opera-
tion level compensa-
tion factor at double
speed
0.1% 9999
0–200%
The stall operation level can be
reduced when operating at a high
speed above the rated frequency.
✔ ✔ ✔
9999 Constant according to Pr. 22
48
Second stall prevention
operation current
0.1% 9999
0
Second stall prevention operation
invalid
✔ ✔ ✔
0–200%
The stall prevention operation level
can be set.
9999 Same level as Pr. 22.
66
Stall prevention opera-
tion reduction starting
frequency
0.01Hz 50Hz 0–400Hz
Set the frequency at which the stall
operation level is started to
reduce.
✔ ✔ ✔
156
Stall prevention
operation selection
1 0
0–31/100/
101
Pr. 156 allows you to select
whether to use stall prevention or
not according to the acceleration/
deceleration status.
✔ ✔ ✔
157
OL signal output timer 0.1s 0s
0–25s
Set the output start time of the OL
signal output when stall preven-
tion is activated.
✔ ✔ ✔
9999 Without the OL signal output
—
24
–
27
Refer to Pr. 4 to Pr. 6
Acceleration/
deceleration pattern
29
Acceleration/decelera-
tion pattern selection
1 0
0 Linear acceleration/deceleration
✔ ✔ ✔
6-64
1
S-pattern acceleration/
deceleration A
2
S-pattern acceleration/
deceleration B
Selection of regeneration unit
30
Regenerative function
selection
1 0
0
Brake unit FR-BU2, High power
factor converter FR-HC, Power
regeneration common converter
FR-CV
✔ ✔ ✔
6-84
1 High-duty brake resistor FR-ABR
2
High power factor converter
FR-HC (when an automatic restart
after instantaneous power failure
is selected)
70
Special regenerative
brake duty
0.1% 0% 0–30%
Set this parameter when a high
duty brake resistor or power
regeneration converter is used.
✔ ✔ ✔
Tab. 6-1: Parameter overview (4)