No. Name Description Range Def.
Mode
Addr.
Hex
Pg.
V/f
L1-13
Continuous
Electrothermal
Operation
Selection
Determines whether or not to hold the electrothermal
value when the power supply is interrupted.
0: Disabled
1: Enabled
0, 1 1 O 46D —
L2: Momentary Power Loss
Use L2 parameters to configure drive functions for momentary power loss conditions.
L2-01
Momentary
Power Loss
Operation
Selection
Enables and disables the momentary power loss
function.
0: Disabled - Drive trips on (Uv1) fault when power
is lost.
1: Power Loss Ride-Thru Time - Drive will restart if
power returns within the Power Loss Ride-Thru
Time.
2: CPU Power Active - Drive will restart if power
returns as long as the CPU is working.
0 to 2 0 O 485 —
L3: Stall Prevention Function
Use L3 parameters to configure the Stall Prevention function.
L3-01
Stall
Prevention
Selection
during
Acceleration
Selects the Stall Prevention method used to prevent
excessive current during acceleration.
0: Disabled - Motor accelerates at active
acceleration
rate. The motor may stall if load is too heavy or accel
time is too short.
1: General Purpose - When output current exceeds
L3-02 level, acceleration stops. Acceleration will
continue when the output current level falls below the
L3-02 level.
0, 1
<63>
1 O 48F —
L3-02
Stall
Prevention
Level during
Acceleration
Used when L3-01 = 1.
100% is equal to the drive rated current.
Decrease the set value if stalling or excessive current
occurs with default setting.
0 to 150
<7>
O 490 —
L3-04
Stall
Prevention
Selection
during
Deceleration
When using a braking resistor, use setting "0". Setting
"3" is used in specific applications.
0: Disabled - The drive decelerates at the active
deceleration rate. If the load is too large or the
deceleration time is too short, an ov fault may occur.
1: General Purpose - The drive decelerates at the
active deceleration rate, but if the main
circuit DC bus
voltage reaches the Stall Prevention level,
deceleration will stop. Deceleration will continue
once the DC bus level drops below the Stall
Prevention level.
4: Overexcitation Deceleration - Decelerates with the
flux level determined by n3-13 (Overexcitation Gain).
0, 1, 4 1 S 492 —
L3-05
Stall
Prevention
Selection
during Run
Selects the Stall Prevention method to use to prevent
drive faults during run.
0: Disabled - Drive runs a set
frequency. A heavy load
may cause the drive to trip on an oC or oL fault.
1: Decel Time 1 - The drive will decelerate at Decel
Time 1 (C1-02) if the output current exceeds the level
set by L3-06. Once the current level drops below the
L3-06 level, the drive will accelerate back to its
frequency reference at the active acceleration rate.
2: Decel Time 2 - Same as setting 1 except the drive
decelerates at Decel Time 2 (C1-04).
When output frequency is 6 Hz or less, Stall
Prevention during run is disabled regardless of the
setting in L3-05.
0 to 2 1 O 493 —
B.2 Parameter Table
YASKAWA ELECTRIC TOEP C710606 25B YASKAWA AC Drive J1000 Installation & Start-Up Manual
211
B
Parameter List
2/6/2008-14:44
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