B4: Delay Timers - YASKAWA A1000 Series Technical Manual

b3-18: Speed Search Restart Detection Time
■
Sets the time that the current must be greater than the level set in b3-17 before Speed Search can be restarted.
No.
b3-18
■ b3-19: Number of Speed Search Restarts
Sets the number of times the drive should attempt to find the speed and restart the motor. If the number of restart attempts
exceeds the value set to b3-19, the SEr fault will occur and the drive will stop.
No.
b3-19
■ b3-24: Speed Search Method Selection
Sets the Speed Search method used.
No.
b3-24
Setting 0: Current Detection Speed Search
Setting 1: Speed Estimation Speed Search
Note: For explanations of the Speed Search methods,
Speed Estimation Type Speed Search (b3-24 = 1) on page
b3-25: Speed Search Wait Time
■
Sets the wait time between Speed Search restarts. Increase the wait time if problems occur with overcurrent, overvoltage,
or if the SEr fault occurs.
No.
b3-25

◆ b4: Delay Timers

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 input" (H1-
output must be set to "Timer output" (H2-
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.
b4-01
b4-02
Timer Function Operation
■
When the timer function input closes for longer than the value set in b4-01, the timer output switches on. When the timer
function input is open for longer than the value set in b4-02, the timer output function switches off. The following
diagram demonstrates the timer function operation.
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Name
Speed Search Restart Detection Time
Name
Number of Speed Search Restarts
Parameter Name
Speed Search Method Selection
Refer to Current Detection Speed Search (b3-24 = 0) on page 146
147.
Name
Speed Search Wait Time
=12). One timer can be used only.
Name
Timer Function On-Delay Time
Timer Function Off-Delay Time
5.2 b: Application
Setting Range Default
0.00 to 1.00 s
Setting Range Default
0 to 10
Setting Range Default
0 or 1
and Refer to
Setting Range Default
0.0 to 30.0 s
=18) and a multi-function
Setting Range Default
0.0 to 3000.0 s
0.0 to 3000.0 s
0.10 s
3
0
0.5 s
5
0.0 s
0.0 s
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