Yaskawa CIMR-PU2A0081 — настройки предотвращения залипания для двигателей постоянного тока [238/548]

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Yaskawa CIMR-PU2A0211 [238/548] Overvoltage suppression function
Setting 2: Intelligent Stall Prevention
The drive adjusts the deceleration rate so the DC bus voltage is kept at the level set to parameter L3-17. This produces the
shortest possible deceleration time while protecting the motor from stalling. The selected deceleration time is disregarded and
the achievable deceleration time cannot be smaller than 1/10 of the set deceleration time.
This function uses the following parameters for adjusting the deceleration rate:
DC bus voltage gain (L3-20)
Deceleration rate calculations gain (L3-21)
Inertia calculations for motor acceleration time (L3-24)
Load inertia ratio (L3-25)
Note: The deceleration time is not constant. Do not use Intelligent Stall Prevention in applications where stopping accuracy is a concern. Use
dynamic braking options instead.
Setting 3: Stall Prevention with dynamic braking option
Enables the Stall Prevention function while using a dynamic braking resistor.
Setting 4: Overexcitation Deceleration 1
Overexcitation Deceleration 1 (increasing the motor flux) is faster than deceleration with no Stall Prevention (L3-04 = 0).
Setting 4 changes the selected decel time and functions to provide protection from an overvoltage trip. Refer to Overexcitation
Deceleration (Induction Motors) on page 252 for details.
Setting 5: Overexcitation Deceleration 2
Overexcitation Deceleration 2 slows down the motor while trying to maintain the DC bus voltage at the level set to parameter
L3-17. This function shortens the achievable deceleration time more than by using Overexcitation Deceleration 1. Setting 5
will shorten/lengthen the decel time to maintain the L3-17 bus level. Refer to Overexcitation Deceleration (Induction
Motors) on page 252 for details.
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L3-05: Stall Prevention Selection during Run
Determines how Stall Prevention works during Run. Stall Prevention during run prevents the motor from stalling by
automatically reducing the speed when a transient overload occurs while the motor is running at constant speed.
No. Name Setting Range Default
L3-05 Stall Prevention Selection During Run 0 to 2 1
Note: Stall Prevention during run is disabled when the output frequency is 6 Hz or lower regardless of the L3-05 and L3-06 settings.
Setting 0: Disabled
Drive runs at the set frequency reference. A
heavy load may cause the motor to stall and trip the drive with an oC or oL fault.
Setting 1: Decelerate using C1-02
If the current exceeds the Stall Prevention level set in parameter L3-06, the drive will decelerate at decel time 1 (C1-02). When
the current level drops below the value of L3-06 minus 2% for 100 ms, the drive accelerates back to the frequency reference
at the active acceleration time.
Setting 2: Decelerate using C1-04
Same as setting 1 except the drive decelerates at decel time 2 (C1-04).
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L3-06: Stall Prevention Level during Run
Sets the current level to trigger Stall Prevention during run. Depending on the setting of parameter L3-23, the level is
automatically reduced in the constant power range (speed beyond base speed). A setting of 100% is equal to the drive rated
current.
The Stall Prevention level can be adjusted using an analog input. Refer to Multi-Function Analog Input Terminal Settings
on page 219 for details.
No. Name Setting Range Default
L3-06 Stall Prevention Level During Run
30 to 150%
<1> <1>
<1> The upper limit and default for this setting is determined by L8-38.
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Overvoltage Suppression Function
Suppresses overvoltage faults by decreasing the regenerative torque limit and slightly increasing the output frequency when
the DC bus voltage rises. This function can drive loads with cyclic regenerative operation, such as a punch press or other
applications that involve repetitive crank movements.
5.8 L: Protection Functions
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YASKAWA SIEP YAIP1U 01A AC Drive - P1000 Technical Manual

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Изучите настройки предотвращения залипания для двигателей постоянного тока, включая интеллектуальные и динамические тормозные функции для защиты от перегрузок.