YASKAWA HV600 Technical Reference page 329

■
L4-01: Speed Agree Detection Level
No.
Name
(Hex.)
L4-01 Speed Agree Detection
Level
(0499)
■
L4-02: Speed Agree Detection Width
No.
Name
(Hex.)
L4-02 Speed Agree Detection
Width
(049A)
■
L4-03: Speed Agree Detection Level (+/-)
No.
Name
(Hex.)
L4-03 Speed Agree Detection
Level (+/-)
(049B)
■
L4-04: Speed Agree Detection Width (+/-)
No.
Name
(Hex.)
L4-04 Speed Agree Detection
Width (+/-)
(049C)
■
L4-05: Fref Loss Detection Selection
No.
Name
(Hex.)
L4-05 Fref Loss Detection
Selection
(049D)
Enables the detection of a loss of an analog frequency reference when MFAI terminals (A1 and A2) input the
frequency reference. Set H2-01 to H2-03 = C [MFDO Function Selection = Frequency Reference Loss] to enable this
function.
If the frequency reference is less than 10% in 400 ms, the drive detects frequency reference loss.
0 : Stop
The drive follows the frequency reference and stops the motor.
1 : Run at (L4-06 x Last Reference)
The drive continues to operate at the frequency reference value set in L4-06 [FreqReference at Reference Loss]. When
you return the external frequency reference value, the drive continues to operate with the frequency reference.
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Sets the level to detect speed agree or motor speed when H2-01 to H2-03 = 2, 3, 4, 5 [MFDO
Function Selection = Speed Agree 1, User-set Speed Agree 1, Frequency Detection 1, Frequency
Detection 2].
Sets the width to detect speed agree or motor speed when H2-01 to H2-03 = 2, 3, 4, 5 [MFDO
Function Selection = Speed Agree 1, User-set Speed Agree 1, Frequency Detection 1, Frequency
Detection 2].
Sets the speed agree detection level or motor speed detection level when H2-01 to H2-03 = 13, 14,
15, 16 [MFDO Function Selection = Speed Agree 2, User-set Speed Agree 2, Frequency Detection 3,
Frequency Detection 4].
Sets the width to detect speed agree or motor speed when H2-01 to H2-03 = 13, 14, 15, 16 [MFDO
Function Selection = Speed Agree 2, User-set Speed Agree 2, Frequency Detection 3, Frequency
Detection 4].
Sets the operation when the drive detects a loss of frequency reference.
Figure 5.75 Detection of Frequency Reference Loss
Description
Description
Description
Description
Description
5.8 L: Protection Functions
Default
(Range)
0.0 Hz
(0.0 - 400.0 Hz)
Default
(Range)
2.0 Hz
(0.0 - 20.0 Hz)
Default
(Range)
0.0 Hz
(-400.0 - +400.0 Hz)
Default
(Range)
2.0 Hz
(0.0 - 20.0 Hz)
Default
(Range)
1
(0, 1)
5
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