Mitsumi electronic 55K Welding System User Manual


 
PARAMETERS
70
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 Number
Factory
Setting
Setting Range Remarks
7.5K or less 5 s
7
11K or more 15 s
0 to 3600 s/0 to 360 s
7.5K or less 10 s
8
11K or more 30 s
0 to 3600 s/0 to 360 s
20 60Hz
50Hz
1 to 120Hz
21 0 0, 1 0: 0 to 3600 s, 1: 0 to 360 s
7.5K or less
44
11K or more
5 s 0 to 3600 s/0 to 360 s
7.5K or less
45
11K or more
9999 0 to 3600 s/0 to 360 s, 9999
9999: Acceleration time =
deceleration time
Pr.20
Pr.8
Pr.45
Deceleration
time
Output frequency (Hz)
Running frequency
Time
Pr.7
Pr.44
Acceleration
time
<Setting>
Use Pr. 21 to set the acceleration/deceleration time and minimum setting increments:
Set value "0" (factory setting) ...........0 to 3600 s (minimum setting increments: 0.1 s)
Set value "1" .....................................0 to 360 s (minimum setting increments: 0.01 s)
Use Pr. 7 and Pr. 44 to set the acceleration time required to reach the frequency set in Pr. 20 from 0Hz.
Use Pr. 8 and Pr. 45 to set the deceleration time required to reach 0Hz from the frequency set in Pr. 20.
Pr. 44 and Pr. 45 are valid when the RT signal is on.
Set "9999" in Pr. 45 to make the deceleration time equal to the acceleration time Pr. 44.
Pr. 3 "base frequency"
Pr. 29 "acceleration/deceleration
pattern"
Related parameters