YASKAWA OYMC V1000, Programming Manual

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1.3 C: Tuning
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual 79
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Figure 1.25
Figure 1.25 Accel/Decel Time Switching Frequency
Switching Acceleration and Deceleration Times by Motor Selection
When switching between motor 1 and 2 using a digital input (H1- = 16) parameters C1-
01 to C1-04 become accel/decel time 1/2 for motor 1 and C1-05 to C1-08 become accel/
decel time 1/2 for motor 2. In this case the digital input “Accel/Decel Time 2 Selection” can
not be used (this would trigger an oPE03 error, indicating a contradictory multi-function
input settings).
Table 1.25 explains the activation of accel/decel times depending on the motor selection and
accel/decel time selection.
Table 1.25 Motor Switching and Accel/Decel Time Combinations
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C1-09: Fast Stop Time
Parameter C1-09 will set a special deceleration that is used when certain faults occur or that
can be operated by closing a digital input configured as H1-
= 15 (N.O. input) or H1-
= 17 (N.C. input). The input does not have to be closed continuously, even a
momentary closure will trigger the Fast Stop operation.
Unlike standard deceleration, once the Fast Stop operation is initiated, the drive cannot be
restarted until the deceleration is complete, the Fast Stop input is cleared, and the Run
command is cycled.
A digital output programmed for “During Fast Stop” (H2-01/02/03 = 4C) will be closed as
long as Fast Stop is active.
Accel/Decel Time 1
(H1- = 7)
Motor 1 Selected Motor 2 Selected
Accel Decel Accel Decel
Open C1-01 C1-02 C1-05 C1-06
Closed C1-03 C1-04 C1-07 C1-08
Output frequency
C1-11
(Accel/decel Time
Switch Frequency)
C1-07
When output frequency
҈
C1-11, the drive accelerates at Accel/Decel Time 1 (C1-01, -02)
When output frequency < C1-11, the drive accelerates at Accel/Decel Time 1 (C1-07, -08)
C1-01 C1-02 C1-08