YASKAWA HV600

Parameter Details
5
5.8 L: Protection Functions
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference 329
■ L4-01: Speed Agree Detection Level
No.
(Hex.)
Name Description
Default
(Range)
L4-01
(0499)
Speed Agree Detection
Level
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].
0.0 Hz
(0.0 - 400.0 Hz)
■ L4-02: Speed Agree Detection Width
No.
(Hex.)
Name Description
Default
(Range)
L4-02
(049A)
Speed Agree Detection
Width
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].
2.0 Hz
(0.0 - 20.0 Hz)
■ L4-03: Speed Agree Detection Level (+/-)
No.
(Hex.)
Name Description
Default
(Range)
L4-03
(049B)
Speed Agree Detection
Level (+/-)
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].
0.0 Hz
(-400.0 - +400.0 Hz)
■ L4-04: Speed Agree Detection Width (+/-)
No.
(Hex.)
Name Description
Default
(Range)
L4-04
(049C)
Speed Agree Detection
Width (+/-)
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].
2.0 Hz
(0.0 - 20.0 Hz)
■ L4-05: Fref Loss Detection Selection
No.
(Hex.)
Name Description
Default
(Range)
L4-05
(049D)
Fref Loss Detection
Selection
Sets the operation when the drive detects a loss of frequency reference. 1
(0, 1)
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.
Figure 5.75 Detection of 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.