B.2 Parameter Table
386 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
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 - In order to avoid stalling
during heavy load conditions, 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 A − A493 —
L3-06
Stall Prevention Level
during Run
This parameter is enabled when L3-05 is set to
"1" or "2". Drive rated current is set as 100%.
Decrease the set value if stalling or excessive
current occurs with the default settings.
30 to
200
<7> A − A494 —
L3-11
OV Suppression
Function Selection
Enables or disables OV suppression function,
which allows the drive to change the output
frequency as the load changes, thus preventing
an OV fault.
0: Disabled
1: Enabled
Note: The frequency reference and motor
speed diverge as the regenerative energy
begins to flow back into the DC bus and
triggers the OV suppression function. Disable
this function when using a braking resistor.
0, 1 0 A A A 4C7 —
L3-17
Overvoltage
Suppression and
Deceleration Stall
(Desired DC Bus
Voltage during Motor
Stall)
Sets the desired value for the DC bus voltage
during overvoltage suppression and stall
prevention during deceleration. Enabled only
when L3-04 = 2.
150 to
400 V
<24>
370
V
<9>
<24>
AAA 462 —
L3-20
Main Power Circuit
Voltage Adjustment
Gain
Sets the proportional gain to suppress voltage
in the DC bus.
If OV or UV1 occurs at the beginning of KEB
deceleration, slowly increase this setting by
0.1.
0.00 to
5.00
1.00 A A A 465 —
No. Name Description Range Def.
Control
Mode
Addr.
Hex
Pg.
V/
f
O
L
V
P
M