YASKAWA HV600 Manual page 193

b3-02:
b3-03:
Note:
Set the lower limit of the delay time to b3-05 for when Speed Search starts.
■
Speed Search and Operation Conditions
These conditions apply to Speed Search operation. When A1-02 = 0 [Control Method Selection = V/f Control], set
b3-24 [Speed Search Method Selection] before you do Speed Search.
• Do Speed Search with each Run Command
The drive ignores a Speed Search command from the external terminals.
• Use an MFDI to do an External Speed Search Command
To use an MFDI to do Speed Search, input the Run command at the same time that terminal Sx set for Speed Search
activates, or after Speed Search activates.
Set Speed Search to H1-xx to do the function externally. You cannot set external Speed Search 1 and 2 at the same
time.
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 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
When there is an active Run command and the output frequency is higher than the minimum frequency, you must
clear the external baseblock command to do Speed Search.
■
b3-01: Speed Search at Start Selection
No.
Name
(Hex.)
b3-01 Speed Search at Start
Selection
(0191)
0 : Disable
Enter a Run command to start to operate the drive at the minimum output frequency.
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
Figure 2.21 Speed Search Selection at Start
Table 2.23 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 OLV/PM EZOLV OLV/PM
Sets the Speed Search at Start function where the drive will perform Speed Search with each Run
command.
L2-03:
L2-04:
Current Detection 2
Description
2.3 b: Application
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)
(0, 1)
2
0
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