YASKAWA A1000 Series Quick Start Manual page 164

B Parameter List
No. Name
Target DC Bus Voltage for
L3-17
Overvoltage Suppression and
<18>
Stall Prevention
DC Bus Voltage Adjustment
L3-20
Gain
Accel/Decel Rate Calculation
L3-21
Gain
Deceleration Time at Stall
L3-22 Prevention during
Acceleration
Automatic Reduction
L3-23 Selection for Stall Prevention
during Run
Motor Acceleration Time for
L3-24
Inertia Calculations
L3-25 Load Inertia Ratio
L3-26 Additional DC Bus Capacitors
Stall Prevention Detection
L3-27
Time
<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> Setting range is dependent on the control mode (A1-02). When using CLV, OLV/PM, or AOLV/PM, the setting range is 0 to 2 s.
<35> The upper limit of the setting range is determined by the values set to the duty selection (C6-01) and the carrier frequency reduction selection
(L8-38).
L4: Speed Detection
■
No. Name
Speed Agreement Detection
L4-01
Level
Speed Agreement Detection
L4-02
Width
Speed Agreement Detection
L4-03
Level (+/-)
Speed Agreement Detection
L4-04
Width (+/-)
Frequency Reference Loss
L4-05
Detection Selection
Frequency Reference at
L4-06
Reference Loss
164
Sets the desired value for the DC bus voltage during overvoltage suppression
and Stall Prevention during deceleration.
Sets the proportional gain for KEB Ride-Thru, Stall Prevention, and overvoltage
suppression.
Sets the proportional gain used to calculate the deceleration rate during KEB
Ride-Thru, ov suppression function, and Stall Prevention during deceleration
(L3-04 = 2).
Sets the deceleration time used for Stall Prevention during acceleration in OLV/
PM.
0: Sets the Stall Prevention level set in L3-06 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.
Sets the time needed to accelerate the uncoupled motor at rated torque from stop
to the maximum frequency.
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.
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.
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.
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.
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
Description
Description
Setting
Default: 370
Vdc
<33>
Min: 150 Vdc
Max: 400 Vdc
<33>
Default:
<10>
Min: 0.00
Max: 5.00
Default: 1.00
Min: 0.10
Max: 10.00
Default: 0.0 s
Min: 0.0 s
Max: 6000 s
Default: 0
Min: 0
Max: 1
Default:
<8> <9> <14>
Min: 0.001 s
Max: 10.000 s
Default: 1.0
Min: 1.0
Max: 1000.0
Default: 0 μF
Min: 0 μF
Max: 65000 μF
Default: 50 ms
Min: 0 ms
Max: 5000 ms
Setting
Default: 0.0 Hz
Min: 0.0 Hz
=
Max: 400.0 Hz
Default:
<10>
Min: 0.0 Hz
Max: 20.0 Hz
Default: 0.0 Hz
Min: -400.0 Hz
=
Max: 400.0 Hz
Default:
<10>
Min: 0.0 Hz
Max: 20.0 Hz
Default: 0
Min: 0
Max: 1
Default: 80%
Min: 0.0%
Max: 100.0%