L9: Drive Protection 2 - YASKAWA GA800 Programming Manual

This function detects when PM motors are not synchronized.
The drive cannot detect when motors are not synchronized because the frequency reference is low during start up and
the motor is locked. If fault detection is necessary in these conditions, set the control fault detection level to enable
detection of desynchronization because of motor locking. Increase the setting in 5-unit increments.
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L8-93: Low Speed Pull-out DetectionTime
No.
Name
(Hex.)
L8-93 Low Speed Pull-out
DetectionTime
(073C)
Expert
Set this parameter to 0.0 to disable the function.
■
L8-94: Low Speed Pull-out Detect Level
No.
Name
(Hex.)
L8-94 Low Speed Pull-out Detect
Level
(073D)
Expert
■
L8-95: Low Speed Pull-out Amount
No.
Name
(Hex.)
L8-95 Low Speed Pull-out Amount
(077F)
Expert
◆

L9: Drive Protection 2

L9 parameters are used to configure the protection function used to detect cooling fan faults.
■
L9-16: FAn1 Detect Time
No.
Name
(Hex.)
L9-16 FAn1 Detect Time
(11DC)
Expert
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
V/f CL-V/f OLV CLV AOLV
Sets the length of time the drive will wait to start baseblock after detecting LSo [Low Speed Motor
Step-Out].
V/f CL-V/f OLV CLV AOLV
Sets the detection level for LSo [Low Speed Motor Step-Out] as a percentage of E1-04 [Maximum
Output Frequency].
V/f CL-V/f OLV CLV AOLV
Sets the average count of LSo [Low Speed Motor Step-Out] detections.
V/f CL-V/f OLV CLV AOLV
Sets the detection time for FAn1 [Drive Cooling Fan Fault]. Yaskawa recommends that you do not
change this parameter value.
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
2.9 L: Protection Functions
Default
(Range)
1.0 s
(0.0 - 10.0 s)
Default
(Range)
3%
(0 - 10%)
Default
(Range)
10
(1 - 50 times)
Default
(Range)
4.0 s
(0.0 - 30.0 s)
2
483