Yaskawa iQpump Micro - Manual (Page 255)

u L2: Momentary Power Loss Ride-Thru
No.
(Addr.
Hex)
Name LCD Display Description Values Page
L2-01
(0485)
Momentary Power Loss
Operation Selection
PwrL Selection
0: Disabled
1: Enbl with Timer
2: Enbl whl CPU act
0: Disabled. Drive trips on Uv1 fault when power is lost.
1: Recover within the time set in L2-02. Uv1 will be detected if
power loss is longer than L2-02.
2: Recover as long as CPU has power. Uv1 is not detected.
Default: 2
Range: 0 to 2
–
L2-02
(0486)
Momentary Power Loss
Ride-Thru Time
PwrL Ridethru t
Sets the Power Loss Ride-Thru time. Enabled only when
L2-01 = 1 or 3.
Default: <1>
Min.: 0.0 s
Max.: 25.5 s
–
L2-03
(0487)
Momentary Power Loss
Minimum Baseblock
Time
PwrL Baseblock t
Sets the minimum wait time for residual motor voltage decay
before the drive output reenergizes after performing Power Loss
Ride-Thru.
Increasing the time set to L2-03 may help if overcurrent or
overvoltage occur during Speed Search or during DC Injection
Braking.
Default: <1>
Min.: 0.1 s
Max.: 5.0 s
–
L2-04
(0488)
Momentary Power Loss
Voltage Recovery
Ramp Time
PwrL V/F Ramp t
Sets the time for the output voltage to return to the preset V/f
pattern during Speed Search.
Default: <1>
Min.: 0.0 s
Max.: 5.0 s
–
L2-05
(0489)
Undervoltage Detection
Level (Uv1)
PUV Det Level
Sets the DC bus undervoltage trip level. Default: 190
Vdc
<2> <3>
Min.: 150 Vdc
Max.: 210 Vdc
<3>
–
L2-06
(048A)
KEB Deceleration Time KEB Decel Time
Sets the time required to decelerate from the speed when KEB
was activated to zero speed.
Default: 0.0 s
Min.: 0.0
Max.: 200.0
<4>
–
L2-07
(048B)
KEB Acceleration Time KEB Accel Time
Sets the time to accelerate to the frequency reference when
momentary power loss is over. If set to 0.0, the active
acceleration time is used.
Default: 0.0 s
Min.: 0.0
Max.: 25.5
<4>
–
L2-08
(048C)
Frequency Gain at KEB
Start
KEB Freq Red
Sets the percentage of output frequency reduction at the
beginning of deceleration when the KEB Ride-Thru function is
started.
Reduction = (slip frequency before KEB) × L2-08 × 2
Default: 100%
Min.: 0
Max.: 300
–
L2-11
(0461)
DC Bus Voltage
Setpoint during KEB
KEB DC Bus Level
Sets the desired value of the DC bus voltage during KEB Ride-
Thru.
Default: <2>
[E1-01] × 1.22
Min.: 150 Vdc
Max.: 400 Vdc
<3>
–
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
<2> Default setting is dependent on parameter E1-01, Input voltage Setting.
<3> Values shown are specific to 200 V class drives. Double the value for 400 V class drives.
<4> Setting range value is dependent on parameter C1-10, Accel/Decel Time Setting Units. When C1-10 = 0 (units of 0.01 seconds), the setting range
becomes 0.00 to 600.00 seconds.
u L3: Stall Prevention
No.
(Addr.
Hex)
Name LCD Display Description Values Page
L3-01
(048F)
Stall Prevention
Selection during
Acceleration
StallP Accel Sel
0: Disabled
1: General purpose
2: Intelligent
0: Disabled.
1: General purpose. Acceleration is paused as long as the current
is above the L3-02 setting.
2: Intelligent. Accelerate in the shortest possible time without
exceeding the L3-02 level.
Default: 1
Range: 0 to 2
–
L3-02
(0490)
Stall Prevention Level
during Acceleration
StallP Accel Lvl
Used when L3-01 = 1 or 2. 100% is equal to the drive rated
current.
Default: <1>
Min.: 0%
Max.: 150%
<1>
–
L3-03
(0491)
Stall Prevention Limit
during Acceleration
StallPAcc LowLim
Sets Stall Prevention lower limit during acceleration when
operating in the constant power range. Set as a percentage of
drive rated current.
Default: 50%
Min.: 0
Max.: 100
–
B.8 L: Protection Function
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual 255
B
Parameter List