Instruction manual

75
4
PARAMETERS
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.
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.
Parameter
Number
Factory Setting Setting Range Remarks
7
001 to 005 5s
0 to 3600s/0 to 360s
007.5, 010 10s
8
001 to 005 5s
0 to 3600s/0 to 360s
007.5, 010 10s
20 60Hz 1 to 400Hz
21 0 0, 1
0: 0 to 3600s
1: 0 to 360s
44
001 to 005 5s
0 to 3600s/0 to 360s
007.5, 010 10s
45 9999
0 to 3600s/
0 to 360s, 9999
9999: acceleration time =
deceleration time
Pr. 3 "base frequency"
Pr. 29 "acceleration/deceleration
pattern"
Related parameters
Time
Pr.20
Pr.7
Pr.44
Pr.8
Pr.45
Running frequency
Acceleration Deceleration
Output frequency
(Hz)
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