Yaskawa iQpump1000 AC Drive Quick Start - Manual (Page 361)

No.
(Addr.
Hex)
Name LCD Display Description Values Page
L1-19
(0444)
Operation at Thermistor
Disconnect (THo)
(NTC)
Tho Stop sel
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
to C1-09)
3: Alarm only (“THo” will flash)
Note: This parameter is only available in models
4A0930 and 4A1200.
Default: 3
Range: 0 to 3
–
L1-20
(0445)
Operation at Motor
Overheat (oH5)
OH5 Stop sel
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
to C1-09)
3: Alarm only (“oH5” will flash)
Note: This parameter is only available in models
4A0930 and 4A1200.
Default: 1
Range: 0 to 3
–
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
3: KEB Mode
4: KEB Stop Mode
5: KEB Decel Stop
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.
3: KEB deceleration for the time set to L2-02.
4: KEB deceleration as long as CPU has power.
5: KEB deceleration to stop.
Default: 2
Range: 0 to 5
–
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: 0.00 s
Min.: 0.00
Max.: 6000.0
<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: 0.00 s
Min.: 0.00
Max.: 6000.0
<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
–
B.8 L: Protection Function
YASKAWA TOEP YAIP1W 01B YASKAWA AC Drive - iQpump1000 Quick Start Guide 361
B
Parameter List