B4: Delay Timers - YASKAWA T1000V Technical Manual

5.2 b: Application
b3-17: Speed Search Restart Current Level
■
If there is a fairly large difference between the estimated frequency and the actual motor speed when performing Speed
Estimation, a large current can flow. This parameter sets the current level at which Speed Estimation is restarted, thus
avoiding overcurrent and overvoltage problems. The parameter is set as a percentage of the drive rated current. This
function has no influence when Current Detection Speed Search is used (b3-24 = 0).
No.
b3-17
b3-18: Speed Search Restart Detection Time
■
Sets the time the current must be above the level set in b3-17 before Speed Search is restarted. This function has no
influence when Current Detection Speed Search is used (b3-24 = 0)
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 using Speed Estimation Speed
Search. This function has no influence when Current Detection Speed Search is used (b3-24 = 0).
No.
b3-19
■ b3-24: Speed Search Method Selection
Sets the Speed Search method used.
Note: For explanations of the Speed Search methods,
Refer to Speed Estimation Type Speed Search (b3-24 = 1) on page
No.
b3-24
Setting 0: Current Detection Speed Search
Setting 1: Speed Estimation Speed Search
■ b3-25: Speed Search Wait Time
Sets the wait time between Speed Search restarts.
No.
b3-25

◆ b4: Delay Timers

The timer function is independent of the 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-
120
Name
Speed Search Restart Current Level
Name
Speed Search Restart Detection Time
Name
Number of Speed Search Restarts
Refer to Current Detection Type Speed Search (b3-24 = 0) on page 116
Parameter Name
Speed Search Method Selection
Name
Speed Search Wait Time
=12). One timer can be used only.
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
Setting Range
0 to 200%
Setting Range
0.00 to 1.00 s
Setting Range
0 to 10
115.
Setting Range
0 or 1
Setting Range
0.0 to 30.0 s
Default
150%
Default
0.10 s
Default
3
and
Default
0
Default
0.5 s
=18) and a multi-function