L5: Fault Restart - YASKAWA GA800 Technical Reference

12.9 L: Protection Functions
■
L4-04: Speed Agree Detection Width (+/-)
No.
Name
(Hex.)
L4-04 Speed Agree Detection
Width (+/-)
(049C)
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].
■
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 the frequency reference is input from the MFAI
terminals (A1, A2, and A3). Set H2-01 to H2-03 = C [MFDO Function Select = 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.
■
L4-06: Frequency Reference @Loss of Ref
No.
Name
(Hex.)
L4-06 Frequency Reference @Loss
of Ref
(04C2)
Set L4-05 = 1 [Fref Loss Detection Selection = Run at (L4-06 x Last Reference)] to enable this parameter.
■
L4-07: Speed Agree Detection Selection
No.
Name
(Hex.)
L4-07 Speed Agree Detection
Selection
(0470)
0 : No Detection during Baseblock
Detects the frequency while the drive is operating. When the drive turns off its output, it will not detect frequency.
1 : Detection Always Enabled
◆

L5: Fault Restart

The Auto Restart function tries to keep machines operating when the drive detects a transient fault.
986
V/f CL-V/f OLV CLV AOLV
Sets the width to detect speed agree or motor speed.
V/f CL-V/f OLV CLV AOLV
Sets the operation when the drive detects a loss of frequency reference.
Figure 12.136 Detection of Frequency Reference Loss
V/f CL-V/f OLV CLV AOLV
Sets the frequency reference as a percentage to continue drive operation after it detects a frequency
reference loss. The value is a percentage of the frequency reference before the drive detected the loss.
V/f CL-V/f OLV CLV AOLV
Sets the condition that activates speed detection.
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
Default
(Range)
Determined by A1-02
(Determined by A1-02)
Default
(Range)
0
(0, 1)
Default
(Range)
80.0%
(0.0 - 100.0%)
Default
(Range)
0
(0, 1)