Stopping Methods; Selecting The Stopping Method When A Stop Command Is Sent - YASKAWA Varispeed G7 Series Instruction Manual

Stopping Methods

This section explains methods of stopping the Inverter.


Selecting the Stopping Method when a Stop Command is Sent

There are four methods of stopping the Inverter when a Stop Command is sent:
Deceleration to stop
•
Coast to stop
•
DC braking stop
•
Coast to stop with timer
•
Set constant b1-03 to select the Inverter stopping method. A DC braking stop and coasting to a stop with a
timer cannot be set for flux vector control.
Related Constants
Con-
stant
Number
Stopping
method
selection
b1-03
Stopping
Method
Operation
selection
for setting
E1-09 or
less
b1-05
Zero-Speed
Oper
Zero-speed
level (DC
injection
braking
b2-01
starting fre-
quency)
DCInj Start
Freq
DC injec-
tion brak-
ing current
b2-02
DCInj Cur-
rent
-12
6
Name
Description
Display
Select stopping method when Stop
Command is sent.
0: Deceleration to stop
1: Coast to stop
2: DC injection braking stop (Stops
faster than coast to stop, no
regenerative operation.)
3: Coast to stop with timer (Run
Commands are disregarded during
deceleration.)
Used to set the method of operation
when the frequency reference input
is less than the minimum output fre-
quency (E1-09).
0: Run at frequency reference (E1-09
not effective).
1: STOP (Frequencies below E1-09
in the coast to stop state.)
2: Run at min. frequency.
(E1-09)
3: Run at zero-speed (Frequencies
below E1-09 are zero)
Used to set the frequency which starts
DC injection braking in units of Hz
when deceleration to stop is selected.
When b2-01 is less than E1-09, E1-09
becomes the DC injection braking
starting frequency.
Sets the DC injection braking current
as a percentage of the Inverter rated
current.
Control Methods
Change
Setting Factory during
V/f
Range Setting Opera-
V/f with
tion
PG
0 to 3* 0 No Q
0 to 3 0 No No No
0.0 to
0.5 Hz No A
10.0
0 to
50% No A
100
MEMO-
Open- Open
BUS
loop Flux Loop
Regis-
Vec- Vec- Vec-
ter
tor tor tor
1 2
Q Q Q Q 182H
No A No 184H
A A A A 189H
A A No No 18AH