L2: Momentary Power Loss Ride-Thru - YASKAWA A1000 Series Quick Start Manual

B.8 L: Protection Function
No.
(Addr. Name
Hex)
L1-17 Motor 2 Thermistor
(0442) Selection (NTC)
L1-18 Motor 2 Overheat
(0443) Temperature
Operation at Thermistor
L1-19
Disconnect (THo)
(0444)
(NTC)
L1-20 Operation at Motor
(0445) Overheat (oH5)
<1> Default setting is determined by parameter A1-02, Control Method Selection.
<2> Available in drive software versions PRG: 1019 and later.
<3> Display is in the following units:
2A0004 to 2A0040, 4A0002 to 4A0023, and 5A0007 to 5A0017: 0.01 A units.
2A0056 to 2A0415, 4A0031 to 4A0675, and 5A0022 to 5A0242: 0.1 A units.
u

L2: Momentary Power Loss Ride-Thru

No.
(Addr. Name
Hex)
L2-01 Momentary Power Loss
(0485) Operation Selection
L2-02 Momentary Power Loss
(0486) Ride-Thru Time
Momentary Power Loss
L2-03
Minimum Baseblock
(0487)
Time
Momentary Power Loss
L2-04
Voltage Recovery Ramp
(0488)
Time
L2-05 Undervoltage Detection
(0489) Level (Uv1)
300
LCD Display
0: Disabled
1: Enabled
M2 OH5 Fault Sel
Note:
Sets the temperature for motor 1 that triggers an overheat fault
(oH5).
M2 OH5 level
Note:
Determines drive response when a thermistor disconnect fault
(THo) occurs.
0: Ramp to stop
1: Coast to stop
2: Fast Stop (decelerate to stop using the deceleration time set
Tho Stop sel
to C1-09)
3: Alarm only ("THo" will flash)
Note:
Determines drive response when a motor overheat fault (oH5)
occurs.
0: Ramp to stop
1: Coast to stop
2: Fast Stop (decelerate to stop using the deceleration time set
OH5 Stop sel
to C1-09)
3: Alarm only ("oH5" will flash)
Note:
LCD Display
PwrL Selection 0: Disabled. Drive trips on Uv1 fault when power is lost.
0: Disabled 1: Recover within the time set in L2-02. Uv1 will be detected
1: Enbl with Timer if power loss is longer than L2-02.
2: Enbl whl CPU act 2: Recover as long as CPU has power. Uv1 is not detected.
3: KEB Mode 3: KEB deceleration for the time set to L2-02.
4: KEB Stop Mode 4: KEB deceleration as long as CPU has power.
5: KEB Decel to Stp 5: KEB deceleration to stop.
Sets the Power Loss Ride-Thru time. Enabled only when L2-01
= 1 or 3.
PwrL Ridethru t
Sets the minimum wait time for residual motor voltage decay
before the drive output reenergizes after performing Power
Loss Ride-Thru.
PwrL Baseblock t
Increasing the time set to L2-03 may help if overcurrent or
overvoltage occur during Speed Search or during DC Injection
Braking.
Sets the time for the output voltage to return to the preset V/f
pattern during Speed Search.
PwrL V/F Ramp t
Sets the DC bus undervoltage trip level.
PUV Det Level
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide
Description
This parameter is only available in models
4A0930 and 4A1200.
This parameter is only available in models
4A0930 and 4A1200.
This parameter is only available in models
4A0930 and 4A1200.
This parameter is only available in models
4A0930 and 4A1200.
Description
Values Page
Default: 0
–
Range: 0, 1
Default: 120 °C
Min.: 50 –
Max.: 200
Default: 3
–
Range: 0 to 3
Default: 1
–
Range: 0 to 3
Values Page
Default: 0
–
Range: 0 to 5
<1>
Default:
–
Min.: 0.0 s
Max.: 25.5 s
<1>
Default:
–
Min.: 0.1 s
Max.: 5.0 s
<1>
Default:
–
Min.: 0.0 s
Max.: 5.0 s
Default: 190
<2> <3>
Vdc
Min.: 150 Vdc
–
Max.: 210 Vdc
<3>