L4: Speed Detection - YASKAWA A1000 HHP Programming Manual

No.
(Addr. Name
Hex)
Deceleration Time at Stall
L3-22
Prevention during
(4F9)
Acceleration
Automatic Reduction
L3-23
Selection for Stall
(4FD)
Prevention during Run
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 OLV/PM control mode. The setting range is 0 and 1 in CLV or AOLV/PM control modes.
<3> Default setting is dependent on parameter E1-01, Input voltage Setting.
<8> Values shown are specific to 400 V class drives. Multiply the value by 1.4375 for 575 V class drives. Multiply the value by 1.725 for 690 V class
drives.
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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.
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Description
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM
Sets the deceleration time used for Stall Prevention during acceleration in
OLV/PM.
V/f V/f V/f w PG V/f w PG OLV
OLV/PM AOLV/PM CLV/PM
0: Sets the Stall Prevention level set in L3-04 that is used throughout the entire
frequency range.
1: Automatic Stall Prevention level reduction in the constant output range. The
lower limit value is 40% of L3-06.
V/f V/f V/f w PG V/f w PG OLV OLV
OLV/PM OLV/PM AOLV/PM CLV/PM
Sets the time the current must exceed the Stall Prevention level to activate
Stall Prevention.
Description
All Modes
L4-01 sets the frequency detection level for digital output functions
H2-oo = 2, 3, 4, 5.
All Modes
L4-02 sets the hysteresis or allowable margin for speed detection.
All Modes
L4-03 sets the frequency detection level for digital output functions
H2-oo = 13, 14, 15, 16.
All Modes
L4-04 sets the hysteresis or allowable margin for speed detection.
All Modes
0: Stop. Drive stops when the frequency reference is lost.
1: Run. Drive runs at a reduced speed when the frequency reference is lost.
All Modes
Sets the percentage of the frequency reference that the drive should run with
when the frequency reference is lost.
All Modes
0: No detection during baseblock.
1: Detection always enabled.
A.10 L: Protection Function
CLV CLV
CLV
CLV
Values Page
Default: 0.0 s
Min.: 0.0 142
Max.: 6000
Default: 0
144
Range: 0, 1
Default: 50 ms
Min.: 0 145
Max.: 5000
Values Page
Default: 0.0 Hz
Min.: 0.0 145
Max.: 150.0
<1>
Default:
145
Min.: 0.0
Max.: 20.0
Default: 0.0 Hz
Min.: -150.0 145
Max.: 150.0
<1>
Default:
145
Min.: 0.0
Max.: 20.0
Default: 0
146
Range: 0, 1
Default: 80%
Min.: 0.0 146
Max.: 100.0
Default: 0
146
Range: 0, 1
285
A