5.2 b: Application
200 YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual
Figure 5. 21
Figure 5.21 Speed Search in Direction Opposite to Direction Command (b3-51 ≤ t)
■ b3-52 Backspin Search Deceleration Time 1
Sets the search frequency deceleration rate when searching from the direction command when momentary power loss
time t is shorter than the time set in b3-50. Set the value lower than the motor deceleration rate during coasting.
■
b3-53 Backspin Search Deceleration Time 2
Sets the search frequency deceleration rate for a Speed Search from the opposite direction of the direction command
when momentary power loss time t is equal to or longer than the time set in b3-51.
◆ b4: Timer Function
The timer function is independent of drive operation and can be used to delay the switching of a digital output triggered
by a digital input signal. An on-delay and off-delay can be separately set. The delay timer can help to get rid of chattering
switch noise from sensors.
To enable the timer function, a multi-function input must be set to “Timer function input” (H1-=18) and a
multi-function output must be set to “Timer output” (H2-=12). Only one timer can be used.
■
b4-01/b4-02: Timer Function On-Delay, Off-Delay Time
b4-01 sets the on-delay time for switching the timer output. b4-02 sets the off-delay time for switching the timer output.
No. Name Setting Range Default
b3-52 Backspin Search Deceleration Time 1 0.1 to 10.0 s 2.0 s
No. Name Setting Range Default
b3-53 Backspin Search Deceleration Time 2 0.1 to 10.0 s 2.0 s
No. Name Setting Range Default
b4-01 Timer Function On-Delay Time 0.0 to 3000.0 s 0.0 s
b4-02 Timer Function Off-Delay Time 0.0 to 3000.0 s 0.0 s
Motor speed
Output frequency
Power supply voltage
0
Normal operation
Search in progress
b3-50
b3-51
Forward operation
t
Momentary power loss time t
b3-53
SIEP_C710636_02B_1_0.book 200 ページ ２０１５年１１月２５日 水曜日 午後４時５６分
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