YASKAWA GA700 Technical Manual page 716

11.3 b: Application
H1-xx
Setting
61 Speed Search from Fmax
62 Speed Search from Fref
• Do Speed Search with Each Auto Restart
Set L5-01 [Number of Auto-Restart Attempts] = 1 or more. After there is an Auto Restart fault, the drive
automatically does Speed Search.
• Do Speed Search after Momentary Power Loss
Set L2-01 =1, 2 [Power Loss Ride Through Select = Enabled for L2-02 Time, Enabled while CPU Power
Active].
• Do Speed Search after You Clear the External Baseblock Command
After you clear the external baseblock command, enable the Run command, and when the output frequency is
higher than the minimum frequency, the drive does Speed Search.
■
b3-01: Speed Search at Start Selection
No.
Name
(Hex.)
b3-01 Speed Search at Start
Selection
(0191)
0 : Disabled
Enter a Run command to start to operate the drive at the minimum output frequency.
When the Run command is enabled and the Speed Search from Fmax or Fref [H1-xx = 61, 62] is input from a
multi-function input terminal, the drive will do Speed Search and start to operate the motor.
1 : Enabled
Enter the Run command to do Speed Search. The drive completes Speed Search then starts to operate the motor.
■
b3-02: SpeedSearch Deactivation Current
No.
Name
(Hex.)
b3-02 SpeedSearch
Deactivation Current Sets the current level that stops Speed Search as a percentage of the drive
(0192)
If the drive cannot restart the motor, decrease this setting.
■
b3-03: Speed Search Deceleration Time
No.
Name
(Hex.)
b3-03 Speed Search
Deceleration Time
(0193)
This is the output frequency deceleration time used by Current Detection Speed Search and by the Current
Injection Method of Speed Estimation Speed Search.
Note:
If the drive detects oL1 [Motor Overload] during Current Detection Speed Search, decrease the value set in b3-03.
716
Table 11.27 Execute Speed Search via the Digital Input Terminals
Name
ON: Speed Search starts from E1-04
[Maximum Output Frequency].
ON: Speed Search starts from the
frequency reference immediately before
you input the Speed Search command.
V/f CL-V/f OLV
Sets the Speed Search at Start function where the drive will perform Speed
Search with each Run command.
V/f CL-V/f OLV
rated output current. Usually it is not necessary to change this setting.
V/f CL-V/f OLV
Sets the deceleration time during Speed Search operation. Set the length of
time to decelerate from the maximum output frequency to the minimum
output frequency.
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Current Detection 2
Description
CLV AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
CLV AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
CLV AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Speed Estimation
External Speed Search commands 1 and 2
work the same.
The drive estimates the motor speed, then
starts Speed Search from the estimated
speed.
Default
(Range)
Determined by A1-02
(0, 1)
Default
(Range)
Determined by A1-02
(0 - 200%)
Default
(Range)
(0.1 - 10.0 s)
2.0 s