YASKAWA A1000 HHP Programming Manual page 47

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.
Accel/Decel Time 1 (H1-oo = 7)
Open
Closed
Switching Accel/Decel Times by a Frequency Level
The drive can switch between different acceleration and deceleration times automatically. The drive will switch from accel/
decel time 4 in C1-07 and C1-08 to the default accel/decel time in C1-01 and C1-02 (C1-05 and C1-06 for motor 2) when the
output frequency exceeds the frequency level set to parameter C1-11. When the frequency falls below this level, the accel/
decel times are switched back.
Note: Acceleration and deceleration times selected by digital inputs have priority over the automatic switching by the frequency level set to C1-11.
For example, if accel/decel time 2 is selected, the drive will use only accel/decel time 2; it will not switch from accel/decel time 4 to the
selected one.
(accel time from 0 Hz to C1-11)
C1-03 =
(accel time between C1-11 and E1-04)
C1-01 =
(decel time between E1-04 and C1-11)
C1-02 =
(decel time from C1-11 to 0 Hz)
C1-04 =
n C1-11: Accel/Decel Time Switching Frequency
Sets the frequency at which the drive switches between accel/decel time settings.
a Frequency Level on page 47
No.
C1-11
<1> In AOLV/PM and CLV/PM control modes, the setting units and range are expressed as a percentage (0.0 to 100.0%) instead of in Hz.
Note: Setting C1-11 to 0.0 disables this function.
n C1-09: Fast Stop Time
Sets a special deceleration used when a select group of faults occur (e.g., L8-03 Overheat Pre-Alarm Operation Selection) or
when closing a digital input configured as H1-oo = 15 (N.O. input) or 17 (N.C. input). A momentary closure of the digital
input will trigger the Fast Stop operation; it does not have to be closed continuously.
The drive cannot be restarted after initiating a Fast Stop operation until after completing deceleration, clearing the Fast Stop
input, and cycling the Run command.
A digital output programmed for "During Fast Stop" (H2-oo = 4C) will be closed as long as Fast Stop is active.
No.
C1-09
<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
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Table 1.24 Motor Switching and Accel/Decel Time Combinations
Motor 1 Selected
(Terminal set to H1-oo = 16 OFF)
Accel
C1-01
C1-03
Figure 1.29 shows an operation example.
×
(E1-04)
C1-11
×
(E1-04)
(E1-04 - C1-11)
×
(E1-04)
(E1-04 - C1-11)
×
(E1-04)
C1-11
Figure 1.29 Accel/Decel Time Switching Frequency
for details.
Parameter Name
Accel/Decel Time Switching Frequency
Parameter Name
Fast Stop Time
Table
Decel
C1-02
C1-04
Output Frequency
C1-11
Accel/Decel Time
Switch Frequency
C1-03 C1-01
setting setting
When the output frequency C1-11, drive uses Accel/Decel Time 1 (C1-01, -02)
When the output frequency < C1-11, drive uses Accel/Decel Time 2 (C1-03, -04)
Refer to Switching Accel/Decel Times by
1.3 C: Tuning
1.24.
Motor 2 Selected
(Terminal set to H1-oo = 16 ON)
Accel
C1-05
C1-07
C1-02 C1-04
setting setting
Setting Range
Determined by
<1>
0.0 to 400.0 Hz
Setting Range
<1>
0.0 to 6000.0 s
Decel
C1-06
C1-08
Default
<1>
A1-02
1
Default
10.0 s
47