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L2-06: KEB Deceleration Time
Sets the time to decelerate from the frequency reference at the time KEB Ride-Thru was initiated to zero speed. This setting
can be used for System KEB Ride-Thru only.
No. Name Setting Range Default
L2-06 KEB Deceleration Time
0.00 to 6000.0 s
<1>
0.00 s
<1> Setting range is determined by the accel/decel time units set in C1-10. If the time is set in units of 0.01 s (C1-10 = 0), the setting range becomes
0.00 to 600.00 s.
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L2-07: KEB Acceleration Time
Sets the time to reaccelerate from the speed when KEB was deactivated to the frequency reference.
When set to 0.0 s, the drive will accelerate to speed according to the active deceleration time set by C1-01, C1-03, C1-05, or
C1-07.
No. Name Setting Range Default
L2-07 KEB Acceleration Time
0.00 to 6000.0 s
<1>
0.00 s
<1> Setting range is determined by the accel/decel time units set in C1-10. If the time is set in units of 0.01 s (C1-10 = 0), the setting range becomes
0.00 to 600.00 s.
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L2-08: Frequency Gain at KEB Start
When the KEB Ride-Thru command is input, the output frequency is reduced in a single step to quickly get the motor into a
regenerative state. Calculate the amount of this frequency reduction using the formula below. L2-08 can only be used with
induction motors.
Amount of reduction = Slip frequency prior to KEB × (L2-08) × 2
No. Name Setting Range Default
L2-08 Frequency Gain at KEB Start 0 to 300% 100%
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L2-10: KEB Detection Time (Minimum KEB Time)
Determines the duration of KEB Ride-Thru operation after it is triggered. Refer to KEB Ride-Thru End Detection on page
245.
No. Name Setting Range Default
L2-10 KEB Detection Time 0 to 2000 ms 50 ms
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L2-11: DC Bus Voltage Setpoint during KEB
Determines the setpoint (target value) for the DC bus voltage during Single KEB Ride-Thru 2. For Single KEB Ride-Thru 1
and System KEB Ride-Thru, parameter L2-11 defines the voltage level to end KEB Ride-Thru.
No. Name Setting Range Default
L2-11 DC Bus Voltage Setpoint during KEB 431.3 to 1150 Vdc
<1>
<1> Default setting is determined by E1-01.
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L2-29: KEB Method Selection
Selects the way the Kinetic Energy Buffering function operates.
Note:
If a multi function input is set for Single KEB Ride-Thru 2 (H1-oo = 7A, 7B), the setting of L2-29 is disregarded and the KEB mode equal
to L2-29 = 1 is automatically selected.
No. Name Setting Range Default
L2-29 KEB Method Selection 0 to 3 0
Setting 0: Single Drive KEB Ride-Thru 1
Setting 1: Single Drive KEB Ride-Thru 2
Setting 2: System KEB Ride-Thru 1
5.8 L: Protection Functions
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
249
5
Parameter Details
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