L2: Momentary Power Loss Ride-Thru - YASKAWA Z1000 User Manual

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L2: Momentary Power Loss Ride-Thru

No.
(Addr. Name
Hex)
L2-01 Momentary Power Loss
(485) Operation Selection
L2-02 Momentary Power Loss
(486) Ride-Thru Time
Momentary Power Loss
L2-03
Minimum Baseblock
(487)
Time
Momentary Power Loss
L2-04
Voltage Recovery Ramp
(488)
Time
L2-05 Undervoltage Detection
(489) Level (Uv1)
L2-06 KEB Deceleration
(48A) Time
L2-07 KEB Acceleration
(48B) Time
L2-08 Frequency Gain at KEB
(48C) Start
L2-10 KEB Detection Time
(48E) (Minimum KEB Time)
L2-11 DC Bus Voltage
(461) Setpoint during KEB
L2-29
KEB Method Selection
(475)
<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> Default is 0 in drive software versions PRG: 1017 and earlier.
YASKAWA ELECTRIC TOEP C710616 45F YASKAWA AC Drive – Z1000 User Manual
LCD Display
0: Disabled.
PwrL Selection Drive trips on Uv1 fault when power is lost.
0: Disabled 1: Recover within the time set in L2-02.
1: Enbl with Timer Uv1 will be detected 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.
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
Sets the time required to decelerate from the speed when KEB
KEB Decel Time was activated to zero speed.
Sets the time to accelerate to the frequency reference when
KEB Accel Time momentary power loss is over. If set to 0.0, the active
acceleration time is used.
Sets the percentage of output frequency reduction at the
beginning of deceleration when the KEB Ride-Thru function is
KEB Freq Red
started.
Reduction = (slip frequency before KEB) × L2-08 × 2
Sets the time to perform KEB Ride-Thru.
KEB Detect Time
Sets the desired value of the DC bus voltage during KEB Ride-
Thru.
KEB DC Bus Level
KEB Mode Sel 0: Single Drive KEB Ride-Thru 1
0: Single Mode KEB1 1: Single Drive KEB Ride-Thru 2
1: Single Mode KEB2
B.8 L: Protection Function
Description Values Page
<4>
Default: 2
138
Range: 0 to 2
<1>
Default:
138
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 Vdc
<2> <3>
Min.: 150 Vdc –
Max.: 220 Vdc
<3>
Default: 0.00 s
Min.: 0.00 –
Max.: 6000.0
Default: 0.00 s
Min.: 0.00 –
Max.: 6000.0
Default: 100%
Min.: 0 –
Max.: 300
Default: 50 ms
Min.: 0 –
Max.: 2000
<2>
Default:
[E1-01] × 1.22
Min.: 150 Vdc
–
Max.: 400 Vdc
<3>
Default: 0
–
Range: 0, 1
B
313