YASKAWA U1000 Quick Start Manual page 71

Acceleration time parameters always set the time to accelerate from 0 Hz to the maximum output frequency (E1-04).
Deceleration time parameters always set the time to decelerate from maximum output frequency to 0 Hz. C1-01 and C1-02
are the default active accel/decel settings.
No.
C1-01
C1-02
C1-03
C1-04
C1-05
C1-06
C1-07
C1-08
<1> The setting range for the acceleration and deceleration times is determined by the accel/decel time setting units in C1-10. For example, if the time
is set in units of 0.01 s (C1-10 = 0), the setting range becomes 0.00 to 600.00 s.
Switching Acceleration Times by Digital Input
Accel/decel times 1 are active by default if no input is set. Activate accel/decel times 2, 3, and 4 by digital inputs
(H1-oo = 7 and 1A) as explained in
Accel/Decel Time Sel. 1
H1-oo = 7
0
1
0
1
Figure i.62 shows an operation example for changing accel/decel. times. The example below requires that the stopping method
be set for "Ramp to stop" (b1-03 = 0).
Output
frequency
FWD (REV)
Run command
Accel/Decel Time Selection 1
(Terminals S1 to S8, H1- oo = "7")
Accel/Decel Time Selection 2
(Terminals S1 to S8, H1- oo = "1A")
Switching Acceleration and Deceleration Times by Motor Selection
When switching between motor 1 and 2 using a digital input (H1-oo= 16), parameters C1-01 to C1-04 become accel/decel
times 1 and 2 for motor 1, while C1-05 to C1-08 become accel/decel times 1 and 2 for motor 2. Accel/decel times 1 and 2 can
be switched for each motor using a digital inputs set to H1-oo = 7 like shown in
Note: 1. The motor 2 selection function cannot be used with PM motors.
2. Attempting to use the digital input setting "Accel/Decel time 2 selection" (H1-oo = 1A) together with motor 1/2 switching triggers an
oPE03 error, indicating contradictory multifunction input settings.
YASKAWA ELECTRIC TOEP C710636 04D U1000 Industrial MATRIX Drive Quick Start Guide
Parameter Name
Acceleration Time 1
Deceleration Time 1
Acceleration Time 2
Deceleration Time 2
Acceleration Time 3 (Motor 2 Accel Time 1)
Deceleration Time 3 (Motor 2 Decel Time 1)
Acceleration Time 4 (Motor 2 Accel Time 2)
Deceleration Time 4 (Motor 2 Decel Time 2)
Table i.34.
Table i.34 Accel/Decel Time Selection by Digital Input
Accel/Decel Time Sel. 2
H1-oo = 1A
0
0
1
1
Decel Time 1
(C1-02)
Accel Time 1
Accel Time 2
(C1-01)
(C1-03)
ON
OFF
Figure i.62 Timing Diagram of Accel/Decel Time Change
i.5 Start-Up Programming and Operation
Acceleration
Decel Time 3
Decel Time 2
Accel Time 3
(C1-06)
(C1-04)
(C1-05)
Decel Time 1
(C1-02)
OFF
ON ON
ON
OFF
Setting Range
<1>
0.0 to 6000.0 s
Active Times
C1-01
C1-03
C1-05
C1-07
Decel Time 4
(C1-08)
Accel Time 4
Decel Time 1
(C1-07)
(C1-02)
Time
ON
ON
ON
Table i.35.
Default
10.0 s
Deceleration
C1-02
C1-04
C1-06
C1-08
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