YASKAWA U1000 iQpump Drive, Technical Manual

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5.3 C: Tuning
C parameters set the characteristics for acceleration, deceleration, and S-curves. Other parameters in the C group cover settings
for slip compensation, torque compensation, and carrier frequency.
u
C1: Acceleration and Deceleration Times
n C1-01 to C1-08: Accel, Decel Times 1 to 4
Four different sets of acceleration and deceleration times can be set in the drive by digital inputs, motor selection, or switched
automatically.
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. Parameter Name Setting Range Default
C1-01 Acceleration Time 1
0.0 to 6000.0 s
<1>
10.0 s
C1-02 Deceleration Time 1
C1-03 Acceleration Time 2
C1-04 Deceleration Time 2
C1-05 Acceleration Time 3 (Motor 2 Accel Time 1)
C1-06 Deceleration Time 3 (Motor 2 Decel Time 1)
C1-07 Acceleration Time 4 (Motor 2 Accel Time 2)
C1-08 Deceleration Time 4 (Motor 2 Decel Time 2)
<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 Table 5.13 .
Table 5.13 Accel/Decel Time Selection by Digital Input
Accel/Decel Time Sel. 1
H1- oo = 7
Accel/Decel Time Sel. 2
H1- oo = 1A
Active Times
Acceleration Deceleration
0 0 C1-01 C1-02
1 0 C1-03 C1-04
0 1 C1-05 C1-06
1 1 C1-07 C1-08
Figure 5.31 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
Accel Time 1
(C1-01)
Decel Time 1
(C1-02)
Accel Time 2
(C1-03)
Decel Time 2
(C1-04)
Decel Time 1
(C1-02)
Time
FWD (REV)
Run command
ON OFF ON
ON
Accel/Decel Time Selection 1
(Terminals S1 to S8, H1- oo = “7”)
Accel Time 3
(C1-05)
Decel Time 3
(C1-06)
Accel Time 4
(C1-07)
Decel Time 4
(C1-08)
Decel Time 1
(C1-02)
ON
OFF
ON
OFF
ON
Accel/Decel Time Selection 2
(Terminals S1 to S8, H1- oo = “1A”)
ON
Figure 5.31 Timing Diagram of Accel/Decel Time Change
5.3 C: Tuning
222 YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual