YASKAWA
TOEPYAIGA8002B GA800 Drive Programming
207
■
b1-35: Digital Input Deadband Time
No.
(Hex.)
Name
Description
Default
(Range)
b1-35
(1117)
Expert
Digital Input Deadband
Time
Sets the deadband time for MFDIs.
0.0 ms
(0.0 to 100.0 ms)
When the on/off time for MFDIs is longer than the time set in
b1-35
, the drive activates the MFDI. Set this parameter
to prevent malfunctions caused by relay chattering for applications in which relays send input to MFDI terminals.
◆
b2: DC Injection Braking and Short Circuit Braking
b2 parameters
set the DC Injection Braking and Short Circuit Braking functions.
•
DC Injection Braking: A braking method that injects DC current into the motor windings. This function should not
be used too frequently, because it generates a fair amount of heat in the motor.
•
Short Circuit Braking: A braking method for PM motors.
■
b2-01: DC Injection/Zero SpeedThreshold
No.
(Hex.)
Name
Description
Default
(Range)
b2-01
(0189)
DC Injection/Zero
SpeedThreshold
Sets the frequency to start DC Injection Braking, Short Circuit Braking, and Zero Servo.
Determined by A1-02
(0.0 - 10.0 Hz)
Note:
This parameter is available when
b1-03 = 0 [Stopping Method Selection = Ramp to Stop]
.
When the control method selected in
A1-02 [Control Method Selection]
changes, the
b2-01
function changes.
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
