YASKAWA H6B1A002, Technical Reference

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5.2 b: Application
206 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
■
b3-33: Speed Search during Uv Selection
No.
(Hex.)
Name Description
Default
(Range)
b3-33
(0B3F)
Expert
Speed Search during Uv
Selection Sets the function that starts Speed Search at start-up if the drive detects a Uv [Undervoltage] when it
receives a Run command.
1
(0, 1)
Set these three parameters as shown to enable b3-33 :
• L2-01 = 1, 2 [Power Loss Ride Through Select = Enabled for L2-02 Time, Enabled while CPU Power Active]
• b3-01 = 1 [Speed Search at Start Selection = Enabled]
• b1-03 = 1 [Stopping Method Selection = Coast to Stop]
0 : Disabled
1 : Enabled
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b3-56: InverseRotationSearch WaitTime
No.
(Hex.)
Name Description
Default
(Range)
b3-56
(3126)
InverseRotationSearch
WaitTime Sets the wait time until the drive starts inverse rotation search after it completes forward search when
you do inverse rotation search during Current Detection Speed Search. Determined by o2-04
(0.1 - 5.0 s)
◆
b4: Timer Function
The drive uses timers to delay activating and deactivating MFDO terminals.
Timers prevent sensors and switches from making chattering noise.
There are two types of timers:
•
Timers that set a delay for timer inputs and timer outputs.
These timers delay activating and deactivating of the MFDIs and MFDOs.
To enable this function, set
H1-xx = 18 [MFDI Function Select = Timer Function], and set H2-01 to H2-03 = 12
[MFDO Function Select = Timer Output] .
• Timers that set a delay to activate and deactivate MFDO terminals.
These timers delay activating and deactivating MFDO terminals.
To enable this function, set delay times in parameters
b4-03 to b4-08 .
■
Timer Function Operation
•
Timers that Set a Delay for Timer Inputs and Timer Outputs
Triggers timer output if the timer input is active for longer than the time set in
b4-01 [Timer Function ON-Delay
Time] . Triggers timer output late for the time set in b4-02 [Timer Function OFF-Delay Time] . Figure 5.20 shows an
example of how the timer function works.
Figure 5.20 Example of Timer Function Operation
• Setting On/Off-delay Time for MFDO
Figure 5.21 uses H2-01 terminals to show an example of how the timer function works. Use b4-03 [Terminal M1-
M2 ON-Delay Time] and b4-04 [Terminal M1-M2 OFF-Delay Time] to set this function.