672
YASKAWA
SIEPC71061737B GA800 Drive Technical Reference
Parameter Settings
Function of
b2-01
A1-02 = 0, 1, 2 [V/f, CL-V/f, OLV]
b2-01
sets the frequency to start DC Injection Braking at stop. When the output frequency is less than or equal to the value
set in
b2-01
, the drive will inject the quantity of DC current set in
b2-02 [DC Injection Braking Current]
into the motor for
the time set in
b2-04 [DC Inject Braking Time at Stop]
.
Figure 12.24 DC Injection Braking at Stop
Note:
When
b2-01 ≤ E1-09 [Minimum Output Frequency]
, the drive will start DC Injection Braking from the frequency set
in
E1-09
.
A1-02 = 4 [AOLV]
and
n4-72 = 0 [Speed Feedback Mode
= Without Encoder]
A1-02 = 5, 6, 8 [OLV/PM, AOLV/PM, EZOLV]
b2-01
sets the frequency to start Short Circuit Braking at stop. When the output frequency is less than or equal to the value
set in
b2-01
, the drive will do Short Circuit Braking for the time set in
b2-13 [Short Circuit Brake Time @ Stop]
. When
b2-04 > 0.00 s
, the drive will complete Short Circuit Braking, then do DC Injection Braking for the time set in
b2-04
.
Figure 12.25 Short Circuit Braking at Stop
Note:
When
b2-01 ≤ E1-09
, the drive will start Short Circuit Braking from the frequency set in
E1-09
. If
b2-01 and E1-09 =
0 Hz
, the drive will not do Short Circuit Braking.
A1-02 = 3, 7 [CLV, CLV/PM]
b2-01
sets the frequency to start Zero Speed Control at stop. When the output frequency is less than or equal to the value
set in
b2-01
, the drive will do Zero Speed Control for the time set in
b2-04
.
Figure 12.26 Zero Speed Control at Stop
Note:
When
b2-01 ≤ E1-09
, the drive will start Zero Speed Control from the frequency set in
E1-09
.
A1-02 = 4 [AOLV]
and
n4-72 = 1 [With Encoder]
■
b2-02: DC Injection Braking Current
No.
(Hex.)
Name
Description
Default
(Range)
b2-02
(018A)
DC Injection Braking
Current
Sets the DC Injection Braking current as a percentage of the drive rated current.
50%
(0 - 100%)
When the DC Injection Braking current is more than 50%, the drive decreases the carrier frequency to 1 kHz. The
motor rated current determines how much DC Injection Braking current that the drive can use.
The DC Injection Braking current level has an effect on the strength of the magnetic field that locks the motor shaft.
As the current level increases, the motor windings will supply more heat. Do not set this parameter higher than the
level that is necessary to hold the motor shaft.
Note:
When
A1-02 = 4 [Control Method Selection = AOLV]
and
n4-72 = 1 [Speed Feedback Mode = With Encoder]
, the drive ignores the
b2-02
setting and does initial excitation.
■
b2-03: DC Inject Braking Time at Start
No.
(Hex.)
Name
Description
Default
(Range)
b2-03
(018B)
DC Inject Braking Time at
Start
Sets the DC Injection Braking Time at stop. Sets the time of Zero Speed Control at start when
A1-02
= 3, 7 [Control Method Selection = CLV, CLV/PM]
.
A1-02 = 4: 0.03 s
Other than A1-02 = 4: 0.00 s
(0.00 - 10.00 s)
V/f
CL-V/f
OLV
CLV
AOLV
OLV/PM
OLV/PM AOLV/PM CLV/PM
EZOLV
V/f
CL-V/f
OLV
CLV
AOLV
OLV/PM
OLV/PM AOLV/PM CLV/PM
EZOLV
Содержание GA800 Series
Страница 2: ...This Page Intentionally Blank 2 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 20: ...i 3 Warranty Information 20 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 30: ...1 3 Features and Advantages of Control Methods 30 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 58: ...2 9 Installation Methods 58 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 144: ...4 4 Start up Procedures 144 YASKAWA SIEPC71061737B GA800 Drive Technical Reference Figure 4 8 Basic Steps before Startup...
Страница 268: ...5 6 Safe Disable Input 268 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 306: ...6 3 MEMOBUS Modbus Communications 306 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 370: ...7 10 Troubleshooting Without Fault Display 370 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...
Страница 426: ...8 7 Storage Guidelines 426 YASKAWA SIEPC71061737B GA800 Drive Technical Reference...