YASKAWA AC Drive-A1000 Technical Manual page 428

B.10 L: Protection Function
No.
(Addr. Name
Hex)
L2-03 Momentary Power Loss
(487) Minimum Baseblock Time
Momentary Power Loss
L2-04
Voltage Recovery Ramp
(488)
Time
L2-05 Undervoltage Detection
(489) Level (Uv1)
L2-06
KEB Deceleration Time
(48A)
L2-07
KEB Acceleration Time
(48B)
L2-08 Frequency Gain at KEB
(48C) Start
L2-10 KEB Detection Time
(48E) (Minimum KEB Time)
L2-11 DC Bus Voltage Setpoint
(461) during KEB
L2-29
KEB Method Selection
(475)
<1> Default setting is dependent on parameters C6-01, Drive Duty Selection, and o2-04, Drive Model Selection.
<2> Default setting is dependent on parameter E1-01, Input voltage Setting.
<3> 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.
428
All Modes
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.
V/f V/f V/f V/f V/f w PG V/f w PG V/f w PG V/f w PG OLV OLV OLV OLV
OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM
Sets the time for the output voltage to return to the preset V/f pattern during
Speed Search.
All Modes
Sets the DC bus undervoltage trip level.
All Modes
Sets the time required to decelerate from the speed when KEB was activated
to zero speed.
All Modes
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.
V/f V/f V/f V/f V/f w PG V/f w PG V/f w PG V/f w PG OLV OLV OLV OLV
OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM
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
All Modes
Sets the time to perform KEB Ride-Thru.
All Modes
Sets the desired value of the DC bus voltage during KEB Ride-Thru.
All Modes
0: Single Drive KEB Ride-Thru 1
1: Single Drive KEB Ride-Thru 2
2: System KEB Ride-Thru 1
3: System KEB Ride-Thru 2
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
Description
CLV CLV CLV CLV
CLV CLV CLV CLV
Values Page
<1>
Default:
248
Min.: 0.1 s
Max.: 5.0 s
<1>
Default:
248
Min.: 0.0 s
Max.: 5.0 s
Default: 500.0 Vdc
<2>
248
Min.: 431.3
Max.: 603.8
Default: 0.00 s
Min.: 0.00
249
<3>
Max.: 6000.0
Default: 0.00 s
Min.: 0.00
249
<3>
Max.: 6000.0
Default: 100%
Min.: 0 249
Max.: 300
Default: 50 ms
Min.: 0 249
Max.: 2000
Default: 661.3 Vdc
<2>
249
[E1-01] × 1.22
Min.: 431.3
Max.: 1150
Default: 0
249
Range: 0 to 3