B4: Timer Function - YASKAWA GA800 Programming Manual

2.3 b: Application
Gradually increase the setting value when a large quantity of current flows after speed search starts. If you set this
value too high, speed search will not operate correctly.
■
b3-56: InverseRotationSearch WaitTime
No.
Name
(Hex.)
b3-56 InverseRotationSearch
WaitTime
(3126)
■
b3-61: Init Magnet Pole Estimation Gain
No.
Name
(Hex.)
b3-61 Init Magnet Pole Estimation
Gain
(1B96)
Expert
Use this when n8-35 = 1 [Initial Pole Detection Method = High Frequency Injection]. Adjusts the response gain for
Initial Pole Detection. Specify a positive value for an ordinary motor. The drive sets this value automatically when
High Frequency Injection Tuning completes correctly.
◆

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].
example of how the timer function works.
• Setting On/Off-delay Time for MFDO
Figure 2.33 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.
220
V/f CL-V/f OLV CLV AOLV
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 CL-V/f OLV CLV AOLV
Adjusts the Initial Pole Detection response gain when A1-02 = 6 [Control Method Selection = AOLV/
PM]. Set b3-61 > 0.0 for a general IPM motor.
Figure 2.32 Example of Timer Function Operation
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
Default
(Range)
Determined by o2-04
(0.1 - 5.0 s)
Default
(Range)
5.0
(-20.0 - +20.0)
Figure 2.32 shows an