B4: Timer Function - YASKAWA CIPR-GA50C series Technical Manual

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b3-56: InverseRotationSearch WaitTime
No.
Name
(Hex.)
b3-56 InverseRotationSearch
WaitTime
(3126)
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b3-61: Initial Pole Detection Gain
No.
Name
(Hex.)
b3-61 Initial Pole Detection
Response Gain
(1B96)
Expert
Used when n8-35 = 1 [Initial Pole Detection Method = High Frequency Injection]. Sets the responsiveness for
initial motor magnetic pole calculation. Set this parameter to a positive value for an ordinary monitor. When you
use High Frequency injection Tuning, it will automatically set this parameter.
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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 Selection = Timer Function], and set H2-01 to H2-03
= 12 [MFDO Function Selection = 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.
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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].
shows an example of how the timer function works.
• Setting On/Off-delay Time for MFDO
Figure 12.27 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.
Figure 12.27 Example of How the Timer Function Works with H2-01 Terminals
Note:
When the terminal is triggered, it continues for a minimum of 100 ms. The on/off-delay time of MFDO terminal does not have an effect.
YASKAWA SIEPC71061753A GA500 Technical Manual
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
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.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the responsiveness for initial motor magnetic pole calculation when A1-02 = 6 [Control
Method Selection = AOLV/PM]. Set b3-61 > 0.0 for an ordinary IPM motor.
Figure 12.26 Example of Timer Function Operation
Description
Description
12.3 b: Application
Default
(Range)
Determined by o2-04
(0.1 - 5.0 s)
Default
(Range)
5.0
(-20.0 - +20.0)
Figure 12.26
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