n
C1-11: Accel/Decel Switch Frequency
Sets the switching frequency for automation accel/decel time change over. Refer to
Switching Accel/decel Times by a
Frequency Level on page 143 for details.
No. Parameter Name Setting Range Default
C1-11 Accel/Decel Switch Frequency 0.0 to 400.0 Hz 0.0 Hz
Note: Setting C1-11 to 0.0 Hz disables this function.
n
C1-14: Accel/Decel Rate Frequency
Sets the base frequency used to calculate acceleration and deceleration times.
No. Parameter Name Setting Range Default
C1-14 Accel/Decel Rate Frequency 0.0 to 400.0 Hz 0.0 Hz
Note: The accel/decel rates set to parameters C1-01 to C1-09 change in response to the value set to C1-14.
When C1-14 = 0.0 Hz
Operation example is shown in Figure 5.24.
• Accel Times 1 through 4 determine the time required to accelerate from 0 to the maximum output frequency (E1-04)
• Decel Times 1 through 4 and the Fast-stop Time determine the time required to decelerate from the Maximum Output
Frequency (E1-04) to 0 Hz.
0
Time
Output
frequency
E1-04 = 60 Hz
Frequency
reference = 60 Hz
Accel Times 1 to 4
Decel Times 1 to 4
Figure 5.24 Accel/Decel Rate, Example 1 (C1-14 = 0 Hz, E1-04 = 60 Hz, Frequency Reference = 60 Hz)
When C1-14 ≠ 0.0 Hz
Operation examples are shown in Figure 5.25 and Figure 5.26.
• Accel Times 1 through 4 determine the time required to accelerate from 0 to the value set in C1-14 (Accel/Decel Rate
Frequency)
• Decel Times 1 through 4 and the Fast-stop Time determine the time required to decelerate from the value set in C1-14
(Accel/Decel Rate Frequency ) to 0 Hz.
0
Time
C1-14 = 40 Hz
Output
frequency
Frequency
reference = 60 Hz
Accel Times 1 to 4
Decel Times 1 to 4
Figure 5.25 Accel/Decel Rate, Example 2 (C1-14 = 40 Hz, E1-04 = 60 Hz, Frequency Reference = 60 Hz)
5.3 C: Tuning
144
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
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