YASKAWA V1000 Series Installation & Start-Up Manual page 387

No. Name
Accel/Decel Rate
L3-21
Calculation Gain
Deceleration Time at
L3-22 Stall Prevention
during Acceleration
Automatic Reduction
Selection for Stall
L3-23
Prevention during
Run
Motor Acceleration
L3-24 Time for Inertia
Calculations
L3-25 Load Inertia Ratio
Speed Agreement
L4-01
Detection Level
Speed Agreement
L4-02
Detection Width
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Description
Sets the proportional gain used to calculate the
deceleration rate during KEB, OV suppression
function, and stall prevention during
deceleration (L3-04 = 2).
This parameter does not typically require
adjustment.
Increase the value gradually in units of 1.0 if
overcurrent and overvoltage occur.
For use with a PM motor. Sets the deceleration
time used for stall prevention during
acceleration.
When set to 0, the drive decelerates at the
normal deceleration time.
0: Sets the stall prevention level throughout the
entire frequency range to the value in
parameter L3-06.
1: Automatically lowers the stall prevention
level in the constant output range (output
frequency is greater than the max voltage
output frequency). 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.
This parameter does not typically require
adjustment. Setting the drive capacity to
parameter o2-04 will automatically set this
parameter for a 4-pole motor.
Sets the ratio between the connected
machinery and the motor.
L4: Frequency Detection
Use L4 parameters to configure frequency detection operation.
These parameters configure the multi-function
output (H2- = 2, 3, 4, 5) settings "Fref/
Fout Agree 1", "Fref/Set Agree 1", "Frequency
Detection 1," and "Frequency detection 2".
Parameter L4-01 sets the level while parameter
L4-02 sets the hysteresis for the Speed
Detection Output Function.
Refer to L4-01.
B.2 Parameter Table
Control
Mode
Range Def. Addr.
O
V/ P
Hex
L
f M
V
0.00 to
1.00 A A A 466
200.00
0.0 to
0.0 s − − A 4F9
6000.0
A A Α 4FD
0, 1 0
0.001 to
A A A 46E
<12>
10.000
0.0 to
1.0 A A A 46F
1000.0
0.0 to 0.0
A A A 499
400.0 Hz
0.0 to 2.0
A A A 49A
20.0 Hz
Pg.
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B
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387