YASKAWA T1000V Technical Manual page 344

B.3 Parameter Table
No. Name
Motor Overheat Fault
L1-04 Operation Selection (PTC
input)
Motor Temperature Input
L1-05
Filter Time (PTC input)
Continuous Electrothermal
L1-13
Operation Selection
Momentary Power Loss
L2-01
Operation Selection
Momentary Power Loss
L2-02
Ride-Thru Time
Momentary Power Loss
L2-03
Minimum Baseblock Time
Momentary Power Loss
L2-04 Voltage Recovery Ramp
Time
L2-05 Undervoltage Detection
Level (Uv1)
<17>
Stall Prevention Selection
L3-01
during Acceleration
L3-02 Stall Prevention Level
during Acceleration
<15>
Stall Prevention Limit
L3-03
during Acceleration
344
Sets stopping method when the motor temperature analog
input (H3-02 and H3-10 = E) exceeds the oH4 fault level
(PTC input level: Tr-5°C).
0: Ramp to Stop
1: Coast to Stop
2: Fast-stop
This parameter adjusts the filter on the motor temperature
analog input (H3-02 or H3-10 = E). Increase to add
stability, decrease to improve response.
Determines whether or not to hold the electrothermal value
when the power supply is interrupted.
0: Disabled
1: Enabled
L2: Momentary Power Loss Ride-Thru
Use L2 parameters to configure drive functions for momentary power loss conditions.
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 time set in L2-02.
2: CPU Power Active - Drive will restart if power returns
as long as the CPU is working.
Sets the Power Loss Ride-Thru time. Only effective when
L2-01 = 1.
Sets the minimum wait time for residual motor voltage
decay before the drive output reenergizes after power loss
Ride-Thru. If L2-03 is greater than L2-02, operation
resumes after the time set in L2-03.
Sets the time for the output voltage to return to the V/f
pattern during Speed Search.
Sets the DC Bus undervoltage trip level. This setting rarely
needs to be changed from the default value.
Use L3 parameters to configure the Stall Prevention function.
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.
2: Intelligent - The active acceleration rate is ignored.
Acceleration is completed in the shortest amount of time
without exceeding the current value set in L3-02.
Used when L3-01 = 1 or 2.
100% is equal to the drive rated current.
Decrease the set value if stalling or excessive current
occurs with default setting.
Sets Stall Prevention lower limit during acceleration when
operating in the constant power range. Set as a percentage
of the drive's rated current.
Description
L3: Stall Prevention
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
Control
Mode
Range Def.
V/f OL V P M
0 to 2 1 A A A
0.00 to
0.20 s A A A
10.00
0 to 1 1 A A A
0 to 2 0 A A A
For a restart to occur, the run
command must be maintained
throughout the Ride-Thru period.
0.0 to 25.5 A A A
<11>
0.1 to 5.0 A A A
<33>
0.0 to 5.0 A A A
<33>
<8>
150 to 210 A A A
<11>
0 to 2
1 A A A
<21>
0 to 150
A A A
<6>
<6>
0 to 100 50% A A A
Addr.
Pg.
Hex
483 188
484 188
46D 189
485
189
486 189
487 189
488 190
489 190
48F 190
490 191
491 192