Yaskawa Z1000U - Manual (Page 290)

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.
Fdv is not detected.
Default: 0
Range: 0 to 2
125
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.
Default: 0.5 s
Min.: 0.0
Max.: 2.5
126
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
–
L2-07
(048B)
Momentary Power Loss
Voltage Recovery
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: 0.00 s
Min.: 0.00
Max.: 6000.0
–
L2-13
(04F7)
Input Power Frequency
Fault Detection Gain
FDV Detect Gain Set the gain to use to detect power supply frequency fault (Fdv).
Default: 1.0
Min.: 0.1
Max.: 2.0
–
L2-21
(04F7)
Low Input Voltage
Detection Level
AVV Detect evel Set the level at which to detect a low input voltage.
Default: 150 V
Min.: 100 V
<2>
Max.: 230 V <2>
–
L2-27
(04F7)
Power Supply
Frequency Fault
Detection Width
FDV Detect Width
Sets the frequency width to use to detect power supply
frequency fault (Fdv).
Default: 6.0 Hz
Min.: 3.0 Hz
Max.: 20.0 Hz
–
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
<2> Values shown are specific to 200 V class drives. Double the value for 400 V class drives.
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
3: iLim Mode
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.
3: Enabled (Current Limit). The acceleration rate is
automatically adjusted while limiting the output current at the
setting value of the stall prevention level (L3-02).
Default: 1
Range: 0 to 3
<1>
–
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: <2>
Min.: 0%
Max.: 150%
<2>
–
L3-03
(0491)
Stall Prevention Limit
during Acceleration
StallPAccDecLim
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
–
L3-04
(0492)
Stall Prevention
Selection during
Deceleration
StallP Decel Sel
0: Disabled
1: General purpose
4: High Flux Brake
6: iLim Mode
0: Disabled. Deceleration at the active deceleration rate. An ov
fault may occur.
1: General purpose. Deceleration is paused when the DC bus
voltage exceeds the Stall Prevention level.
4: Overexcitation Deceleration. Decelerates while increasing
the motor flux
6: Enable (Current Limit). The deceleration rate is
automatically adjusted while limiting the regeneration current
at the setting value of the stall prevention level (L3-14).
Default: 1
Range: 0, 1, 4, 6
<1>
–
B.9 L: Protection Function
290 YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual