YASKAWA CIMR-VU BA0001 Technical Manual page 133

Setting
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62
To activate Speed Search by a digital input the input must always be set together with the Run command.
3. After automatic fault restart
Set the number of maximum fault restarts in parameter L5-01 higher than 0.
4. After momentary power loss
The following parameter settings are necessary:
Enable Power Loss Ride-Thru selection by setting L2-01 to 1 (enabled) or 2 (enabled during CPU operation). •
L2-01: Momentary Power Loss Operation Selection on page
Set the number of maximum fault restarts in parameter L5-01 higher than 0. •
5. After baseblock is released
The drive will resume the operation starting with Speed Search if the Run command is present and the output frequency
is above the minimum frequency when the Baseblock command (H1-oo = 8 or 9, N.O. and N.C., respectively) is released.
n
b3-01: Speed Search Selection at Start
Selects if Speed Search is automatically performed when a Run command is issued.
No.
b3-01
Setting 0: Disabled
Speed Search is not automatically performed. It can be activated using a digital input.
Setting 1: Enabled
Speed Search is performed with every Run command.
n b3-02: Speed Search Deactivation Current
Sets Speed Search operating current as a percentage of the drive rated current. If the current falls below this level while
performing Current Detection Speed Search then Speed Search will be finished and normal operation will resume. Normally
there is no need to change this setting. If the drive won't run after a restart, lower this value.
No.
b3-02
Note: When parameter A1-02 = 0 (V/f Control) the factory default setting is 120. When parameter A1-02 = 2 (Open Loop Vector) the factory
default setting is 100.
n b3-03: Speed Search Deceleration Time
Parameter b3-03 sets the output frequency reduction ramp used by Current Detection Speed Search (b3-24 = 0) and by the
Current Injection Method of Speed Estimation (b3-24 = 1). The time entered into b3-03 will be the time to decelerate from
maximum frequency (E1-04) to minimum frequency (E1-09).
No.
b3-03
n b3-05: Speed Search Delay Time
In cases where an output contactor is used between the drive and the motor, the contactor must be closed before Speed Search
can be performed. For Speed Search after a momentary power loss, parameter b3-05 can be used to delay the Speed Search
start providing enough time to operate the contactor.
When Speed Search at start is used, b3-05 will serve as the lower limit of the minimum baseblock time (L2-03).
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual
Table 5.5 Speed Search Activation by Digital Inputs
Description
Closed: Activate Current Detection Speed
External Search
Search from the maximum output frequency
Command 1
Closed: Activate Current Detection Speed
External Search
Search from the frequency reference if b3-01
Command 2
Parameter Name
Speed Search Selection at Start
Name
Speed Search Deactivation Current
Name
Speed Search Deceleration Time
b3-24 = 0
(E1-04).
is set to 0.
218.
Setting Range
0 or 1
Setting Range
0 to 200%
Setting Range
0.1 to 10.0 s
5.2 b: Application
b3-24 = 1
Activate Speed Estimation
Speed Search
–
Refer to
Default
0
Default
Determined by
A1-02
Default
2.0 s
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