Yaskawa CIMR-PU2A0081 — настройки KEB: Ускорение, Частота и Защита от Залипания [235/548]

Превью страниц Страница 235 / 548
Yaskawa CIMR-PU2A0012 [235/548] L3 stall prevention
n
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 acceleration time set in C1-01 or C1-03.
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.
n
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%
n
L2-10: KEB Detection Time (Minimum KEB Time)
No. Name Setting Range Default
L2-10 KEB Detection Time 0 to 2000 ms 50 ms
n
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
150 to 400 Vdc
<1>
[E1-01] × 1.22
<1> Values are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives, but set the
value below 1040 Vdc (overvoltage protection level).
n
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
Setting 3: System KEB Ride-Thru 2
Refer to KEB Ride-Thru Function on page 229 for detailed explanations.
u
L3: Stall Prevention
The motor may experience excessive slip because it
cannot keep up with the frequency reference when the load is too high or
acceleration and deceleration times are too short. If the motor slips during acceleration, it usually causes an overcurrent fault
(oC), drive overload (oL2), or motor overload (oL1). If the motor slips during deceleration, it can cause excessive regenerative
power to flow back into the DC bus capacitors, and eventually cause the drive to fault out from overvoltage (oV). The Stall
Prevention Function prevents the motor from stalling and while allowing the motor to reach the desired speed without requiring
the user to change the acceleration or deceleration time settings. The Stall Prevention function can be set separately for
acceleration, operating at constant speeds, and deceleration.
5.8 L: Protection Functions
YASKAWA SIEP YAIP1U 01A AC Drive - P1000 Technical Manual
235
5
Parameter Details

Содержание

2656

Изучите параметры настройки KEB, включая время ускорения, частоту и защиту от залипания. Оптимизируйте работу вашего двигателя с помощью этих функций.