L4: Speed Detection - YASKAWA P1000 Technical Manual

No.
(Addr. Name
Hex)
L3-05 Stall Prevention Selection
(493) during Run
L3-06 Stall Prevention Level
(494) during Run
L3-11 Overvoltage Suppression
(4C7) Function Selection
Target DC Bus Voltage for
L3-17
Overvoltage Suppression
(462)
and Stall Prevention
L3-20 DC Bus Voltage Adjustment
(465) Gain
L3-21 Accel/Decel Rate
(466) Calculation Gain
Automatic Reduction
L3-23
Selection for Stall
(4FD)
Prevention during Run
L3-24 Motor Acceleration Time for
(46E) Inertia Calculations
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 parameter L8-38, Frequency Reduction Selection.
<2> Default setting is dependent on parameter E1-01, Input voltage Setting.
<3> 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).
<4> Parameter value changes automatically if E2-11 is manually changed or changed by Auto-Tuning.
<5> Default setting is dependent on parameter o2-04, Drive Model Selection.
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 (+/-)
YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual
Description
0: Disabled. Drive runs at a set frequency. A heavy load may cause speed loss.
1: Decel time 1. Uses the deceleration time set to C1-02 while Stall Prevention
is performed.
2: Decel time 2. Uses the deceleration time set to C1-04 while Stall Prevention
is performed.
Enabled when L3-05 is set to 1 or 2. 100% is equal to the drive rated current. Default:
Enables or disables the ov suppression function, which allows the drive to
change the output frequency as the load changes to prevent an ov fault.
0: Disabled
1: Enabled
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).
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.
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.
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.
B.9 L: Protection Function
Values Page
Default: 1
250
Range: 0 to 2
<1>
Min.: 30% 250
<1>
Max.: 150%
Default: 0
250
Range: 0, 1
Default: 375 Vdc
<2> <3>
251
Min.: 150
<3>
Max.: 400
Default: 1.00
Min.: 0.00 251
Max.: 5.00
Default: 1.00
Min.: 0.10 251
Max.: 10.00
Default: 0
251
Range: 0, 1
<4> <5>
Default:
252
Min: 0.001 s
Max: 10.000 s
Default: 1.0
Min.: 1.0 252
Max.: 1000.0
Default: 0 μF
Min: 0 252
Max: 65000
Default: 50 ms
Min.: 0 252
Max.: 5000
Values Page
Default: 0.0 Hz
Min.: 0.0 253
Max.: 400.0
Default: 2.0
Min.: 0.0 253
Max.: 20.0
Default: 0.0 Hz
Min.: -400.0 253
Max.: 400.0
B
465