Yaskawa VS-616G5 Series Revision F Programming Manual - Manual (Page 19)

VS-616G5 Programming Manual 19
V/f V/f w/PG Open Loop
Vector
Flux
Vector
Setting Range: 0.1 to 10.0s
Factory Default: 2.0s
Sets deceleration time during speed search in units of 0.1 second. When speed search deceleration time
is set to 0.0 second, speed search is disabled. The speed search deceleration time should be set to be
somewhat faster than the decel rate of coasting motor. Build an input sequence so that the speed search
command is input at the same time or prior to the FWD (REV) run command. If the run command is
input before the search command, the search command is not effective. Below is a timing diagram of
the search command input:
B4 Delay Timers
The inverter input and output contacts can be used in place of an external timer. When multi-function
contact input (H1-__ = “18”) is closed, a multi-function contact output (H2-__ = “12”) can be set to
close after the On-delay time (B4-01) has expired. When multi-function contact input (H1-__ = “18”)
is opened, a multi-function contact output (H2-__ = “12”) can be set to open after the Off-delay time
(B4-01) has expired. This function operates independently of any action the inverter is performing.
Setting Range: 0.0 to 100.0s
Factory Default: 0.0s
Sets the ON-delay time in units of 0.1 second. The multi-function input must be “closed” for longer
than the ON-delay timer for the multi-function output to close.
B3-03 Speed Search Deceleration Time SpdSrch Dec Time A - A -
B4-01 On-delay Timer Delay-ON Timer A A A A
FWD (REV) Run Command
Speed Search Command
Max. Output Frequency,
Frequency Reference at
Run Command Input,
Output Frequency
ON
ON
Speed Search Min. Baseblock
Operation Time (L2-03)
Speed Agree Detected
B3-02
Figure 7 Search Command Input Timing Diagram
or SFS Output Frequency
Speed Search
Decel Time (B3-03)
Motor Speed
Output Current
Coasting Accelerating
Section B: Application Parameters
B4 Delay Timers