YASKAWA CR700

Parameter Details
11
11.9 L: Protection Function
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual 755
Figure 11.93 Stall Prevention Level during Run with Analog Input
■ L3-17: DC Bus Regulation Level
No.
(Hex.)
Name Description
Default
(Range)
L3-17
(0462)
DC Bus Regulation Level
Sets the target value for the DC bus voltage when the Decel Stall Prevention function (Intelligent
Stall Prevention) are active.
200 V Class: 375 V, 400 V
Class: 750 V
(200 V Class: 150 to 400 V,
400 V Class: 300 to 800 V)
Note:
This value is initialized when E1-01 [Input AC Supply Voltage] is changed.
Set this parameter when L3-04 = 2 [Stall Prevention during Decel = Intelligent (Ignore Accel Ramp)].
■ L3-20: DC Bus Voltage Adjustment Gain
No.
(Hex.)
Name Description
Default
(Range)
L3-20
(0465)
Expert
DC Bus Voltage
Adjustment Gain
Sets the proportional gain used to control the DC bus voltage.
Determined by A1-02
(0.00 - 5.00)
This parameter is enabled when L3-04 = 2 [Stall Prevention during Decel = Intelligent (Ignore Accel Ramp)].
■ L3-21: OVSuppression Accel/Decel P Gain
No.
(Hex.)
Name Description
Default
(Range)
L3-21
(0466)
Expert
OVSuppression Accel/
Decel P Gain
Sets the proportional gain to calculate acceleration and deceleration rates.
Determined by A1-02
(0.10 - 10.00)
This parameter is enabled when L3-04 = 2 [Stall Prevention during Decel = Intelligent (Ignore Accel Ramp)].
■ L3-23: Stall P Reduction at Constant HP
No.
(Hex.)
Name Description
Default
(Range)
L3-23
(04FD)
Stall P Reduction at
Constant HP
Sets the function to automatically decrease the Stall Prevention Level during Run for Constant
Horse Power (CHP) part of the speed range.
0
(0, 1)
0 : Use L3-06 for Entire Speed Range
The drive uses the level set in L3-06 [Stall Prevent Level during Run] through the full speed range.
1 : Automatic Reduction @ CHP Region
The drive decreases the Stall Prevention level during run in the constant power range. The lower limit is 40% of
the L3-06 value.
■ L3-24: Motor Accel Time @ Rated Torque
No.
(Hex.)
Name Description
Default
(Range)
L3-24
(046E)
Expert
Motor Accel Time @ Rated
Torque
Sets the motor acceleration time to reach the maximum frequency at the motor rated torque for
stopped single-drive motors.
Determined by o2-04 and
E2-11
(0.001 - 10.000 s)
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV