Yaskawa Matrix Converter - Manual (Page 182)

Acceleration and Deceleration Characteristics
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17
Acceleration and Deceleration Characteristics
This section explains the acceleration and deceleration characteristics of the MxC.
‹ Setting Acceleration and Deceleration Times
The “acceleration time” refers to the time it takes for the output frequency to climb from 0% to 100%, while
“deceleration time” refers the time taken for the output frequency drop down to 0%. The default acceleration
time is C1-01, and the default of the deceleration time is C1-02.
„ Related Parameters
Parameter
Number
Name
Description
Setting
Range
Default
Change
during
Run
Control Methods
Display V/f
Open
Loop
Vector
Flux
Vector
C1-01
Acceleration Time
1
Sets the time to accelerate from zero to maxi-
mum frequency.
0.0 to
6000.0 *
10.0 s
Yes Q Q Q
Accel Time 1
C1-02
Deceleration Time
1
Sets the time to decelerate from maximum
frequency to zero.
Yes Q Q Q
Decel Time 1
C1-03
Acceleration Time
2
Sets the time to accelerate from zero to maxi-
mum frequency when selected via a multi-
function input.
Yes A A A
Accel Time 2
C1-04
Deceleration Time
2
Sets the time to decelerate from maximum
frequency to zero when selected via a multi-
function input.
Yes A A A
Decel Time 2
C1-05
Acceleration Time
3
Sets the time to accelerate from zero to maxi-
mum frequency when selected via a multi-
function input.
No A A A
Accel Time 3
C1-06
Deceleration Time
3
Sets the time to decelerate from maximum
frequency to zero when selected via a multi-
function input.
No A A A
Decel Time 3
C1-07
Acceleration Time
4
Sets the time to accelerate from zero to maxi-
mum frequency when selected via a multi-
function input.
No A A A
Accel Time 4
C1-08
Deceleration Time
4
Sets the time to decelerate from maximum
frequency to zero when selected via a multi-
function input.
No A A A
Decel Time 4
C1-10
Accel/Decel Time
Setting Units
Sets the setting resolution of C1-01 to C1-09.
0: 0.01 s (0.00 to 600.00 s)
1: 0.1 s (0.0 to 6000.0 s)
0 or 1 1 No A A A
Acc/Dec Units
C1-11
Accel/Decel
Switch Frequency Sets the frequency for automatic switching of
accel/decel times.
Fout < C1-11: Accel/Decel Time 4
Fout
≥C1-11: Accel/Decel Time 1
Multi-function inputs “Multi-Acc/Dec 1” and
“Multi-Acc/Dec 2” have priority over C1-11.
Note: With Multi-Function Input, Accel/
Decel Time 1 and 2 will take prece-
dence.
0.0 to
120.0
0.0 Hz No A A A
Acc/Dec SW Freq