Mitsubishi Electric 800 Series Instruction Manual (Function page 234

For the acceleration time at automatic restart after instantaneous power failure, refer to Pr.611 Acceleration time at a restart
(page 443, page 449).
Pr. Name
20 Acceleration/deceleration
F000 reference frequency
21 Acceleration/deceleration time
F001 increments
16 Jog acceleration/deceleration
F002 time
611
Acceleration time at a restart
F003
7
Acceleration time
F010
8
Deceleration time
F011
44 Second acceleration/
F020 deceleration time
45
Second deceleration time
F021
147 Acceleration/deceleration time
F022 switching frequency
1103 Deceleration time at
F040 emergency stop
791 Acceleration time in low-speed
F070 range
792 Deceleration time in low-speed
F071 range
375 Faulty acceleration rate
H801 detection level
*1 Gr.1 and Gr.2 are the parameter initial value groups. (Refer to
*2 Initial value for the FR-E820-0175(3.7K) or lower, FR-E840-0095(3.7K) or lower, FR-E860-0061(3.7K) or lower, and FR-E820S-0110(2.2K) or
lower.
*3 Initial value for the FR-E820-0240(5.5K), FR-E820-0330(7.5K), FR-E840-0120(5.5K), FR-E840-0170(7.5K), and FR-E860-0090(5.5K) or higher.
*4 Initial value for the FR-E820-0470(11K) or higher and FR-E840-0230(11K) or higher.
*1
Initial value
Setting range
Gr.1 Gr.2
60 Hz 50 Hz 1 to 590 Hz
0
0
1
0.5 s 0 to 3600 s
0 to 3600 s
9999
9999
*2
5 s
*3
0 to 3600 s
10 s
*4
15 s
*2
5 s
*3
0 to 3600 s
10 s
*4
15 s
*2
5 s
*3
0 to 3600 s
10 s
*4
15 s
0 to 3600 s
9999
9999
0 to 590 Hz
9999
9999
5 s 0 to 3600 s
0 to 3600 s
9999
9999
0 to 3600 s
9999
9999
9999 0 to 400 Hz/ms
page 54.)
Description
Set the frequency that is the basis of acceleration/
deceleration time. As acceleration/deceleration time, set the
time required to change the frequency from stop status (0
Hz) to the frequency set in Pr.20 and vice versa.
Increment: 0.1 s Select the increment for the
acceleration/deceleration time
Increment: 0.01 s
setting.
Set the acceleration/deceleration time for JOG operation
(from stop status to Pr.20). Refer to
Set the acceleration time (time required to change the
frequency from stop status (0 Hz) to the frequency set in
Pr.20) for restart.
Standard acceleration time (for example, Pr.7) is applied as
the acceleration time at restart. Refer to
Set the motor acceleration time (time required to change the
frequency from stop status (0 Hz) to the frequency set in
Pr.20).
Set the motor deceleration time (time required to change the
frequency from the frequency set in Pr.20 to stop status (0
Hz)).
Set the acceleration/deceleration time used while the RT
signal is ON.
Set the deceleration time used while the RT signal is ON.
The acceleration time applies to the deceleration time.
Set the frequency where the acceleration/deceleration time
switches to the time set in Pr.44 and/or Pr.45.
Function disabled.
Set the motor deceleration time at a deceleration by turning
ON the X92 signal.
Set the acceleration time in a low-speed range (less than 1/
10 of the rated motor frequency).
The acceleration time set in Pr.7 is applied. (While the RT
signal is ON, the second function is enabled.)
Set the deceleration time in a low-speed range (less than 1/
10 of the rated motor frequency).
The deceleration time set in Pr.8 is applied. (While the RT
signal is ON, the second function is enabled.)
If the motor rotation speed exceeds the speed set in Pr.375,
E.OA (Acceleration error) is activated, and the inverter
output is shut off.
10. (F) Settings for Acceleration/Deceleration
10.1 Setting the acceleration and deceleration time
1
2
3
page 271.
4
5
page 443, page 449.
6
7
8
9
10
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