Selecting The Stopping Method: B1-03; Deceleration To Stop; Coast To Stop; Dc Injection Braking Stop - YASKAWA VARISPEED-616G5 Instruction Manual

Basic Operation

6.1.7 Selecting the Stopping Method: b1-03

6.1.7 Selecting the Stopping Method: b1-03
6
Output frequency
Set the stopping method used when a stop command is input.
D
User User
Name
Constant
Number
Stopping method
b1-03
selection
Only settings 0 and 1 can be used with flux vector control.
D
Settings
D
Setting
0

Deceleration to stop

1

Coast to stop

2 DC braking stop: Stops faster than coast to stop, without regenerative operation.
3 Coast to stop with timer: Run commands are disregarded during deceleration time.
The following diagrams show the operation of each stopping method.
D
Deceleration to Stop (b1-03 = 0)
•
Run command
Output frequency
Excitation level (b2-01)
Decelerates to a stop at a rate set with the selected deceleration time.
Fig 6.4 Deceleration to Stop
Coast to Stop (b1-03 = 1)
•
Run command
Output frequency
After the stop command is input, run commands are disregarded
until the minimum baseblock time (L2-03) has elapsed.
Fig 6.5
Coast to Stop
DC Injection Braking Stop (b1-03 = 2)
•
Run command
ON
Min. baseblock time
(L2-03)
After the stop command is input and the minimum baseblock time (L2-03) has elapsed, DC
injection braking is applied and the motor stopped.
The DC injection braking time depends upon the output frequency when the stop command is
input and the "DC injection braking time at stop" setting in b2-04, as shown in Figure 6.6.
Fig 6.6

DC Injection Braking Stop

Change g
during during Setting Setting
Opera- Range
tion
0 to 3
×
ON OFF
Deceleration
time
ON OFF
The inverter output is shut OFF when the stop command
is input and the run command goes OFF.
DC injection braking time
OFF
b2-04 × 10
DC injection braking
b2-04
DC injection braking time
6 - 12
Valid Access Levels
Unit Factory Factory
V/f V/f with
Setting
Control PG
− 0 Q Q
Function
DC injection braking
DC injection braking time at stop (b2-04)
Output frequency
when the stop
command is input
10 % 100% (Max. frequency)
Open
Flux
Loop
Vector
Vector
Q Q