YASKAWA AC Drive-A1000 User Manual

Min output
frequency
100%
(Max output
frequency)
Output frequency
when Stop command
was entered
Run wait time t
Active deceleration time
Min Baseblock Time (L2-03)
Figure 5.7 Run Wait Time Depending on Output Frequency
n
b1-04: Reverse Operation Selection
Enables and disables Reverse operation. For some applications, reverse motor rotation is not appropriate and may cause
problems (e.g., air handling units, pumps, etc.).
No. Parameter Name Setting Range Default
b1-04 Reverse Operation Selection 0, 1 0
Setting 0: Reverse operation enabled
Possible to operate the motor in both forward and reverse directions.
Setting 1: Reverse operation disabled
Drive disregards a Reverse run command or a negative frequency reference.
n
b1-05: Action Selection below Minimum Output Frequency (CLV and CLV/PM)
Note:
PM motor control modes are not available on 600 V class drives, CIMR-Ao5oooooooo.
Sets the operation when the frequency reference is lower than the minimum output frequency set in parameter E1-09.
No. Parameter Name Setting Range Default
b1-05 Action Selection below Minimum Output Frequency 0 to 3 0
Setting 0: Follow the Frequency Reference
The drive adjusts the motor speed following the speed reference, even if the frequency reference is below the setting of
parameter E1-09. When the Run command is removed and the motor speed is smaller than the setting of b2-01, Zero Speed
Control (not position lock) is performed for the time set in parameter b2-04 before the drive output shuts off.
Zero Speed
Control
b2-01 Zero
Speed Level
Run
Command
Frequency
reference
Motor
Speed
OFF ON
Zero Speed
Control
E1-09 Min.
Frequency
b2-04
Zero Speed Time at Stop
E1-09
b2-03
Zero Speed Time at Start
IM: Initial Excitation
PM: Zero Spd. Contr.
Figure 5.8 Run at the Frequency Reference
Setting 1: Coast to Stop
The motor starts when the frequency reference exceeds the parameter E1-09 setting. When the motor is running and the
frequency reference falls below E1-09, the drive output shuts off and the motor coasts. When the motor speed falls below the
zero speed level set in b2-01, Zero Speed Control is activated for the time set in b2-04.
5.2 b: Application
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YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual

YASKAWA AC Drive-A1000 Specifications

General

Brand	YASKAWA
Model	AC Drive-A1000
Category	Controller
Language	English