YASKAWA A1000 Technical Manual page 94

4.6 Basic Drive Setup Adjustments
Note: If b2-01 is set to a smaller value than parameter E1-09 (minimum frequency), then DC Injection Braking will begin as soon as the frequency
falls to the value set to E1-09.
OLV/PM and AOLV/PM (A1-02 = 5, 6)
Note: PM motor control modes are not available on 600 V class drives, CIMR-Ao5oooooo.
For these control modes, parameter b2-01 sets the starting frequency for Short-Circuit Braking at stop. When the output
frequency falls below the setting of b2-01, Short-Circuit Braking is enabled for the time set in parameter b2-13. If DC Injection
Braking time is enabled at stop, then DC Injection Braking is performed for the time set in b2-04 after Short-Circuit Braking
is complete.
Note: If b2-01 is set to a smaller value than parameter E1-09 (minimum frequency), then DC Injection Braking will begin as soon as the frequency
falls to the value set to E1-09.
CLV and CLV/PM (A1-02 = 3, 7)
Note: PM motor control modes are not available on 600 V class drives, CIMR-Ao5oooooo.
For these control modes, parameter b2-01 sets the starting frequency for Zero Speed Control (not position lock) at stop. When
the output frequency falls below the setting of b2-01, Zero Speed Control is enabled for the time set in parameter b2-04 provided
b1-05 is set to 0.
Note: If b2-01 is set lower than the minimum frequency (E1-09), then Zero Speed Control begins at the frequency set to E1-09.
n b3-01: Speed Search Selection at Start
Determines if Speed Search is automatically performed when a Run command is issued.
No.
b3-01
Setting 0: Disabled
This setting starts operating the drive at the minimum output frequency when the Run command is entered. If external Speed
Search 1 or 2 is already enabled by a digital input, the drive will start operating with Speed Search.
Setting 1: Enabled
This setting performs Speed Search when the Run command is entered. The drive begins running the motor once Speed Search
is complete.
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Output
frequency
Figure 4.15 DC Injection Braking at Stop for V/f, V/f w/PG and OLV
E1-09 Min. Frequency
b2-01 Zero Speed Level
Output
frequency
Figure 4.16 Short-Circuit Braking at Stop in OLV/PM and AOLV/PM
E1-09 Min. Frequency
b2-01 Zero Speed Level
Output
frequency
Figure 4.17 Zero Speed Control at Stop in CLV and CLV/PM
Parameter Name
Speed Search Selection at Start
DC Injection
Braking
E1-09 Min. Frequency
b2-01 Zero Speed Level
b2-04
Short Circuit
Braking
b2-13 b2-04
Zero Speed
Control
b2-04
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Time
DC Injection
Braking
Time
Time
Setting Range
0, 1
Default
Determined by
A1-02