L4: Speed Detection; L5: Fault Restart - YASKAWA A1000 Technical Manual

No.
(Addr. Name
Hex)
L3-25
Load Inertia Ratio
(46F)
L3-26 Additional DC Bus
(455) Capacitors
L3-27 Stall Prevention Detection
(456) Time
<1> Upper limit is dependent on parameters C6-01, Drive Duty Selection, and L8-38, Frequency Reduction Selection.
<2> The setting range is 0 to 2 in CLV, OLV/PM, or AOLV/PM, control modes.
<3> Default setting is dependent on parameter E1-01, Input voltage Setting.
<4> Default setting is determined by parameter A1-02, Control Mode Setting.
<5> Parameter value changes automatically if E2-11 is manually changed or changed by Auto-Tuning.
<6> Default setting is dependent on parameters C6-01, Drive Duty Selection, and o2-04, Drive Model Selection.
<7> Default setting is dependent on parameter E5-01, Motor Code Selection.
<8> Values shown are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives, but
set the value below 1040 Vdc (overvoltage protection level).
u

L4: Speed Detection

No.
(Addr. Name
Hex)
L4-01 Speed Agreement Detection
(499) Level
L4-02 Speed Agreement Detection
(49A) Width
L4-03 Speed Agreement Detection
(49B) Level (+/-)
L4-04 Speed Agreement Detection
(49C) Width (+/-)
L4-05 Frequency Reference Loss
(49D) Detection Selection
L4-06 Frequency Reference at
(4C2) Reference Loss
L4-07 Speed Agreement Detection
(470) Selection
<1> Default setting is dependent on parameter A1-02, Control Method Selection.
u

L5: Fault Restart

No.
(Addr. Name
Hex)
L5-01 Number of Auto Restart
(49E) Attempts
L5-02 Auto Restart Fault Output
(49F) Operation Selection
L5-04
Fault Reset Interval Time
(46C)
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Description
Sets the ratio between the motor and machine inertia.
When DC bus capacitors have been added externally, be sure to add those
values to the internal capacitor table for proper DC bus calculations.
Sets the time the current must exceed the Stall Prevention level to activate
Stall Prevention.
Description
L4-01 sets the frequency detection level for digital output functions
H2-oo = 2, 3, 4, 5.
L4-02 sets the hysteresis or allowable margin for speed detection.
L4-03 sets the frequency detection level for digital output functions
H2-oo = 13, 14, 15, 16.
L4-04 sets the hysteresis or allowable margin for speed detection.
0: Stop. Drive stops when the frequency reference is lost.
1: Run. Drive runs at a reduced speed when the frequency reference is lost.
Sets the percentage of the frequency reference that the drive should run with
when the frequency reference is lost.
0: No detection during baseblock.
1: Detection always enabled.
Description
Sets the number of times the drive may attempt to restart after the following
faults occur: GF, LF, oC, ov, PF, rH, rr, oL1, oL2, oL3, oL4, STo, Uv1.
0: Fault output not active.
1: Fault output active during restart attempt.
Sets the amount of time to wait between performing fault restarts.
B.8 L: Protection Function
Values Page
Default: 1.0
Min.: 1.0
Max.: 1000.0
Default: 0 μF
Min: 0
Max: 65000
Default: 50 ms
Min.: 0
Max.: 5000
Values Page
Default: 0.0 Hz
Min.: 0.0
Max.: 400.0
<1>
Default:
Min.: 0.0
Max.: 20.0
Default: 0.0 Hz
Min.: -400.0
Max.: 400.0
<1>
Default:
Min.: 0.0
Max.: 20.0
Default: 0
Range: 0, 1
Default: 80%
Min.: 0.0
Max.: 100.0
Default: 0
Range: 0, 1
Values Page
Default: 0
Min.: 0
Max.: 10
Default: 0
Range: 0, 1
Default: 10.0 s
Min.: 0.5
Max.: 600.0
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