hawe放大器支持功能安全达到SIL2

Precise control of proportional valves

比例阀的控制

The electronic amplifier for actuating proportional valves, type EV1M3, from HAWE Hydraulik SE, Munich, is now certified as suitable for safety functions, as an independent expert certified the product's SIL2-capacity. This makes it easier for machine and plant manufacturers to document the functional safety of the entire machine and/or plant. What's more, operators can now rely on a high degree of protection against failure.

驱动比例阀，电子放大器类型ev1m3，从HAWE Hydraulik SE，慕尼黑，现在是认定为适合的安全功能，作为一个独立的专家认证产品的SIL2能力。这使得它更容易为机器和工厂的制造商，以记录整个机器和/或工厂的功能安全。更甚的是，运营商现在可以依靠一个高度的保护，防止失败。

The amplifier had been developed for industrial hydraulic applications, such as presses, lifting and hoisting installations or machining tools. It actuates the proportional valves' solenoids using a pulse-width modulated signal (PWM). Its integrated feedback flow gauge ensures pressure and volume flow are precisely controlled. This way the valve opens and closes with the same precision over a temperature range from -20°C to +50°C and at different operating cycles. The effect of this good reproducibility is that the valve operates reliable.

该放大器已被开发用于工业液压应用，如印刷机，起升和起升装置或机械加工工具。它驱动比例阀的电磁铁使用脉宽调制信号（PWM）。其集成的反馈流量表确保压力和体积流量控制。这种方式的阀门开启和关闭具有相同的精度在温度范围从- 20°C至50°C和在不同的工作周期。这种良好的重现性的效果是，该阀工作可靠。

The parameters of minimum and maximum flow, dither amplitude and ramps are easily set manually via a multi-turn potentiometer. Programming knowledge is not required. The proportional amplifier is designed for assembly using a card holder on standardized 32 mm and/or 25 mm wide top hat rails in switch cabinets.

zui小和zui大流量参数，抖动幅度和斜坡很容易通过多圈电位器手动设置。编程知识不是必需的。比例放大器是专为使用卡持有人在标准化的32毫米和/或25毫米宽的顶帽栏杆在开关柜。