B.3 Parameter Table
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 497
L4: Speed Detection
L3-27
(456H)
Stall Prevention Detection Time
Sets the time the current must exceed the Stall Prevention level to activate Stall Prevention.
Default: 50 ms
Min: 0 ms
Max: 5000 ms
288
L3-34
(16FH)
Torque Limit Delay Time
Sets the filter time constant in seconds for the torque limit value to return to set value when the
Power KEB Ride-Thru is enabled (L2-29 = 1). If oscillation occurs during Power KEB
Ride-Thru, then gradually increase this setting in increments of 0.010 s.
Note: 1. This parameter is not available in models CIMR-A4A0930 and 4A1200.
2. L3-34 is automatically set to 0.2 when A1-02 is set to “6” (AOLV/PM). L3-34 is
automatically set to 0.02 when A1-02 is set to “7” (CLV/PM).
Default: Determined by
A1-02
Min: 0.000
Max: 1.000
288
L3-35
(747H)
Speed Agree Width at Intelligent
Stall Prevention during
Deceleration
There is normally no need to change this parameter from the default value.
Sets the width of the speed agreement when L3-04=2 (Intelligent Stall Prevention during
deceleration) in units of 0.01 Hz. Use this parameter when hunting is started by a frequency
reference in analog input.
Note: This parameter is not available with models CIMR-A4A0930 and 4A1200.
Default: 0.00 Hz
Min: 0.00 Hz
Max: 1.00 Hz
288
<8> Parameter value is changed if E2-11 is manually changed or changed by Auto-Tuning.
<9> Default setting is determined by the drive model (o2-04) and duty selection (C6-01).
<10> Default setting is determined by the control mode (A1-02).
<14> Default setting value is dependent on the motor code set to parameter E5-01.
<18> Values shown here are for 200 V class drives. Double the value when using a 400 V class drive.
<33> Default setting value is dependent on the setting for the input voltage (E1-01).
<34> 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.
<35> The upper limit of the setting range and default setting is determined by the values set to the duty selection (C6-01) and the carrier frequency
reduction selection (L8-38).
No. (Addr.) Name Description Setting Page
L4-01
(499H)
<10> Default setting is determined by the control mode (A1-02).
Speed Agreement Detection Level
L4-01 sets the frequency detection level for digital output functions H2- = 2, 3, 4, 5.
L4-02 sets the hysteresis or allowable margin for speed detection.
Default:
<10>
Min: 0.0 Hz
Max: 400.0 Hz
288
L4-02
(49AH)
Speed Agreement Detection Width
Default:
<10>
Min: 0.0 Hz
Max: 20.0 Hz
288
L4-03
(49BH)
Speed Agreement Detection Level
(+/-)
L4-03 sets the frequency detection level for digital output functions H2- = 13, 14, 15, 16.
L4-04 sets the hysteresis or allowable margin for speed detection.
Default: 0.0 Hz
Min: -400.0 Hz
Max: 400.0 Hz
289
L4-04
(49CH)
Speed Agreement Detection Width
(+/-)
Default:
<10>
Min: 0.0 Hz
Max: 20.0 Hz
289
L4-05
(49DH)
Frequency Reference Loss
Detection Selection
0: Operate following the frequency reference
1: Run. Drive continues operation according to the setting of L4-06.
Default: 0
Min: 0
Max: 1
289
L4-06
(4C2H)
Frequency Reference at Reference
Loss
Sets the percentage of the frequency reference that the drive should run with when the
frequency reference is lost.
Default: 80.0%
Min: 0.0%
Max: 100.0%
289
L4-07
(470H)
Speed Agree Detection Selection
0: No detection during baseblock.
1: Detection always enabled.
Default: 0
Min: 0
Max: 1
289
No. (Addr.) Name Description Setting Page
OLV/PM AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f OLV
OLV/PM AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f OLV
OLV/PM AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f OLV
All Modes
All Modes
All Modes
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