YASKAWA HV600 Manual page 188

2.3 b: Application
A1-02 Settings
0 [V/f] 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].
Note:
When b2-01 ≤ E1-09 [Minimum Output Frequency], the drive will start DC Injection Braking from the frequency set in E1-09.
5, 8 [OLV/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.
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.
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b2-02: DC Injection Braking Current
No.
Name
(Hex.)
b2-02 DC Injection Braking
Current
(018A)
When the DC Injection Braking current is more than 50%, the drive decreases the carrier frequency to 1 kHz. The
motor rated current determines the quantity of 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.
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b2-03: DC Inject Braking Time at Start
No.
Name
(Hex.)
b2-03 DC Inject Braking Time at
Start
(018B)
This function stops then restarts a coasting motor and increases motor flux to make high starting torque (a process
called initial excitation). Set this parameter to 0.00 to disable the function.
Note:
To restart a coasting motor, use DC Injection Braking to stop and then restart the motor, or enable Speed Search. Enable DC Injection
Braking or Speed Search to prevent ov [Overvoltage] and oC [Overcurrent] faults.
188
b2-01:
b2-04:
Figure 2.16 DC Injection Braking at Stop
b2-01:
b2-04:
Figure 2.17 Short Circuit Braking at Stop
V/f OLV/PM EZOLV OLV/PM
Sets the DC Injection Braking current as a percentage of the drive rated current.
V/f OLV/PM EZOLV OLV/PM
Sets the DC Injection Braking Time at stop.
Function of b2-01
E1-09:
b2-13:
E1-09:
Description
Description
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
Default
(Range)
50%
(0 - 100%)
Default
(Range)
0.00 s
(0.00 - 10.00 s)