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詳細介紹
BURKERT通用調節器177456具有緊湊型的結構方式，非常適合同樣采用緊湊型設計的調節系統。這種調節器經測試可兼容與所有 Bürkert 比例閥和傳感器，在使用標準信號（4-20 mA、0-10 V 或 PWM 輸出信號）的前提下，可以與各種非 Bürkert 調節閥相組合。這種具有 PI 特性的過程調節閥，配備了大量的附加功能。通過 3 個模擬輸入端，可以將工藝實際值作為標準信號 (4-20mA / 0-10V)、電阻信號 (PT100) 或頻率信號讀入。通過電流或電壓標準信號或者鍵盤，可以規定工藝額定值。特別適合溫度調節任務，可以設計其下方安裝有流量調節裝置的級聯式結構。通過控制比例閥和過程閥，可以在流體技術領域中完成各種各樣的調節任務，也可將其應用于液態的或氣態的介質。
BURKERT通用調節器177456特點：
持續式、兩點式、三點式及 On/Off 調節
比例調節
傳感器輸入端（4-20 mA，0-10 V，頻率，Pt100）
比例閥、過程閥和電動閥的控制裝置
預先定義所有的 Bürkert 比例閥和流量傳感器
BURKERT通用調節器177456技術參數：
Power supply | 24 V DC ±10%, filtered and regulated | |
Power consumption | approx. 2 W (without valve - without sensor input) | |
Input |
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Setpoint |
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Standard 4-20 mA | Sourcing mode | |
| Max. input impedance: 70 W | |
| Resolution: 5.5 mA | |
Standard 0-10 V | Max. input impedance: 11.5 kW | |
| Resolution: 2.5 mV | |
Sensors |
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Standard 4-20 mA | Sourcing mode | |
| Max. input impedance: 70 W | |
| Resolution: 5.5 mA | |
Standard 0-10 V | Max. input impedance: 11.5 kW | |
| Resolution: 2.5 mV | |
Frequency |
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Input 1 | External sensor | |
| min. 0.25 Hz / max. 1 kHz | |
| input impedance: >1 kW | |
| Signal type: Sinus, square, triangle pulse (> 3000 mVpp, | |
| max. 30 Vpp) | |
Input 2 | Internal Hall sensor | |
| min. 0.25 Hz / max. 1 kHz | |
| (only with Bürkert Type S030 flow fitting) | |
Pt100 (2 wires) | Measuring range: 0°C...200°C | |
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| Measuring current: 1 mA | |
| Measuring error: <0.5°C | |
Sensor power supply | 24 V DC, max. 1 A | |
Binary input | Input impedance: 10 kW | |
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| Operating threshold: 3 V-30 V | |
| Max. frequency: 1 kHz | |
Outputs |
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Continuous signal | Standard signal 4-20 mA | |
| max. loop resistance: 680 W | |
| accuracy: 0.5% | |
| Standard signal 0-10 V | |
| max. current: 20 mA | |
| accuracy: 0.5% | |
Discontinuous signal | 2 transistor outputs for PWM*) or PTM*) signal | |
| Control frequency 1.2 kHz-20 Hz | |
| resolution max.: 16 Bit (depend from frequency) | |
| max. current load: 1.5 A | |
| switching voltage: 24 V DC | |
Binary output | Transistor output (PNP) (configurable) | |
| max. current load: 1.5 A | |
| switching voltage: 24 V DC | |
Total load of all outputs | max. 1.5 A | |
Controller modes | PI-Control, 2 point and 3 point, cascaded | |
| Up to 2 Binary out with windows and hysteresis mode | |
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