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SADC54 57883146B過程控制PC卡
軟啟動限制整個軟啟動過程中的電流，并覆蓋最大通用應(yīng)用程序的數(shù)量。為電機提供初始扭矩設(shè)置。
從初始扭矩水平開始，電機的輸出電壓是無級的在加速斜坡時間內(nèi)增加（斜坡）。初始扭矩設(shè)置加速斜坡時間可由用戶調(diào)整。線性速度加速度
在這種啟動模式下，電機加速度保持恒定。
控制器以線性方式從關(guān)閉狀態(tài)加速電機（0速度）
在用戶定義的斜坡時間（0…30秒）。Kickstart可用于此選項。
執(zhí)行此啟動模式需要轉(zhuǎn)速計輸入（0…5V DC）。
線性速度加速度在機械上的應(yīng)力最小組件。配置初始扭矩值以定義電機啟動價值電流限制開始Current Limit Start通過保持電機的恒定電流。當(dāng)需要限制時，使用此方法最大起動電流。您可以調(diào)整啟動電流和電流限制啟動斜坡時間?？蛇xKickstart
kickstart功能在啟動時提供了一個助力，以分離可能需要脈沖電流/轉(zhuǎn)矩才能啟動。
它旨在提供短時間的電流/電壓脈沖。
Kickstart在軟啟動中可用，電流限制、線性速度加速和泵控制模式雙斜坡啟動在負(fù)載、啟動扭矩、和開始時間要求。雙斜坡啟動使您能夠選擇通過任何可編程輔助輸入在兩個單獨的啟動配置文件之間。每個啟動配置文件都可以使用任何可用的啟動模式。全電壓起動用于需要跨線起動的應(yīng)用。SMC Flex控制器的性能類似于固態(tài)跨線接觸器。實現(xiàn)了全涌流和堵轉(zhuǎn)轉(zhuǎn)矩。您可以對SMC Flex控制器提供全電壓啟動，其中輸出電壓電機在250毫秒內(nèi)達(dá)到全電壓。在需要低速移動的應(yīng)用程序上使用預(yù)設(shè)低速定位材料。您可以將預(yù)設(shè)慢速設(shè)置為7%（低）或正向15%（高）。您可以設(shè)置倒車速度和10%基本速度設(shè)置的（低）或20%（高）。無換向觸點必修的。為了幫助實現(xiàn)更精確的停車，制動也是其中的一部分作用您可以為速度和方向軟停止模式可用于需要延長停止時間的應(yīng)用程序時間您可以將電壓斜坡下降時間從0秒調(diào)整到120秒。這個當(dāng)編程的停止時間已過或電壓斜坡已過時，負(fù)載停止下降到負(fù)載扭矩大于電機扭矩的點。
Linear Speed Acceleration
With this type of starting mode, the motor acceleration is at a constant rate. The controller accelerates the motor in a linear fashion from the off (0 speed) condition to full speed condition in the time configured in the user-defined ramp time (0…30 seconds). Kickstart is available with this option. A tachometer input (0…5V DC) is required to perform this start mode. Linear Speed Acceleration presents the least amount of stress on mechanical components. An initial torque value is configured to define a motor starting value.
Soft Start limits the current throughout the soft start, and covers the largest number of general applications. The motor is given an initial torque setting. From the initial torque level, the output voltage to the motor is steplessly increased (ramped) during the acceleration ramp time. Initial torque setting and acceleration ramp time are user adjustable.
Selectable Kickstart The kickstart feature provides a boost at startup to break away loads that can require a pulse of current/torque to get started. It is intended to provide a current/voltage pulse for a short time. Kickstart is available in Soft Start, Current Limit, Linear Speed Acceleration, and Pump Control modes
Pump Control Mode
Use Pump Control Mode to reduce surges in a fluid piping system and the resulting fluid hammer or check valve slam that is caused by starting or stopping a centrifugal pump at full voltage and full speed. This mode increases pump life by reducing pump cavitations. To provide these benefits, the microprocessor of the SMC Flex controller generates a motor start curve that follows the starting characteristics of a centrifugal pump and monitors operation during start to deliver reliable pump starts.Dual Ramp Start is useful on applications with variable loads, starting torque, and start time requirements. Dual Ramp Start gives you the ability to select between two separate start profiles via any programmable auxiliary input. Each start profile can use any of the available starting modes.
Full-voltage Start is used in applications that require across-the-line starting. The SMC Flex controller performs like a solid-state across-the-line contactor. Full inrush current and locked-rotor torque are realized. You can program the SMC Flex controller to provide a full-voltage start in which the output voltage to the motor reaches full voltage in 250 ms.
Use Preset Slow Speed on applications that require slow speed moves for positioning material. You can set the Preset Slow Speed at either 7% (low) or 15% (high) in the forward direction. You can program reverse speed and 10% (low) or 20% (high) of the base speed setting. No reversing contacts are required. To help achieve more-accurate stops, braking is also a part of this function. You can program two independent preset slow speed parameters for both speed and direction
The soft stop mode can be used in applications that require an extended stop time. You can adjust the voltage ramp down time from 0...120 seconds. The load stops when the programmed stop time has elapsed or the voltage ramp drops to a point where the load torque is greater than the motor torque.
