Acceleration/Deceleration Time (Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr. 44, Pr. 45) - Mitsubishi Electric FR-E520 Instruction Manual

Note: 1. The priorities of external terminal of the frequency command are in order of
jog, multi-speed, terminal 4 and terminal 2.
2. The multi-speeds can also be set in the PU or external operation mode.
3. For 3-speed setting, if two or three speeds are simultaneously selected,
priority is given to the frequency setting of the lower signal.
4. Pr. 24 to Pr. 27 and Pr. 232 to Pr. 239 settings have no priority between them.
5. The parameter values can be changed during operation.
6. When input terminal assignment is changed using Pr. 180 to Pr. 183, other
functions may be affected. Check the functions of the corresponding
terminals before making setting.
7. When only the REX signal is on with "9999" set in Pr.232, the set frequency
is changed to 0Hz.
4.2.5 Acceleration/deceleration time (Pr. 7, Pr. 8, Pr. 20, Pr. 21, Pr.
44, Pr. 45)
Pr. 7 "acceleration time"
Pr. 8 "deceleration time"
Pr. 20 "acceleration/deceleration
reference frequency"
Pr. 21 "acceleration/deceleration time increments"
Pr. 44 "second acceleration/deceleration time"
Pr. 45 "second deceleration time"
Used to set motor acceleration/deceleration time.
Set a larger value for a slower speed increase/decrease or a smaller value for a faster
speed increase/decrease.
Parameter
Factory Setting
Number
0.1K to 3.7K
7
5.5K, 7.5K
0.1K to 3.7K
8
5.5K, 7.5K
20
21
44
45
Note: The FR-E540-5.5K and 7.5K are factory-set to 10s.
Setting Range
5s
0 to 3600s/0 to 360s
10s
5s
0 to 3600s/0 to 360s
10s
60Hz
0
5s (Note) 0 to 3600s/0 to 360s
9999
0 to 360s, 9999
Pr.20
Pr.7
Pr.44
Acceleration Deceleration
89
PARAMETERS
Related parameters
Pr. 3 "base frequency"
Pr. 29 "acceleration/deceleration
pattern"
1 to 400Hz
0: 0 to 3600s
0, 1
1: 0 to 360s
0 to 3600s/ 9999: acceleration time =
Running frequency
Time
Pr.8
Pr.45
Remarks
deceleration time
4