EWCM4150 EWCM4180详细介绍

EWCM4150 EWCM4180

• It is possible to store in permanent memory the number of hours of operation of each compresso

• EWCM4150 EWCM4180

• 代表了一系列冷冻机组的专业控制器：

• o 可配置用户界面

• o 可配置菜单导航

• o 报警日志

• o 根据设置和安装特性，通过入口传感器控制温度

• o 根据设置和安装特性，通过出口传感器控制冷凝器

• o NTC，4-20mA，0-5V 或0-10V 参数配置输入

• o 根据按键或电脑设置参数

• o 用复制卡上传或下载参数

• o 单回路控制，可以控制4 个压缩机（或压缩机组），可控制4 个功率级

• 或变频压缩机

• o 变频冷凝风扇控制，或者可控制4 个数字式风扇

• 技术参数

• 主要规格

• 标准最小

• 供电电压12V~ 12V~-10% 12V~+10%

• 供电频率50/60HZ

• 电源5VA

• 绝缘等级二级

• 工作温度25°C -10°C 60°C

• 环境湿度（不含冷凝器） 30% 10% 90%

• 环境存储温度25°C -20°C 85°C

• 环境储存湿度30% 10% 90%

• 输入/输出特性

• 数字技术参数

• AI1…AI4输入2 配置NTC传感器103AT（10KΩ/25°C）或自由电压数

• 字输入

• 2 配置NTC传感器103AT（10KΩ/25°C）或4-20mA/0-5V

• 信号（21KΩ输入阻抗）或自由电压数字输入

• DI1…DI5数字输入5 类型：带闭环接地的自由电压，接地电流：0.5mA

• DO1…DO4和DO6

• 110Vac/230Vac数字输出

• 4 EW4120：2A阻抗继电器（250V~）

• 5 EWCM4180：2A阻抗继电器（250V~）

• TRIAC输出（TC） 1 EWCM4120：TRIAC 2A250V 输出

• 低压数字输出DO5 1 开路集电极，电流35mA**

• 模拟输出（PWM/开路集电

• 极）

• 1 EWCM4120的AO1 可用，电流35mA**（最小负

• 载600Ohm @12Vcc）

• It is a single and complete range of electronic controllers with microprocessor

• Datas are view on a display with 3 digits.

The Eliwell 32x74 format, which over the years has become the standard for electronic controllers in the commercial refrigeration, is evolving and generating a new family of compact electronic devices for compressor plant management.
EWCM 400 series includes three separate models, which differ among each other based on the outputs they use.
All the devices manage up to 4 simple compressors or 2 compressors with capacity steps, 2 temperature or pressure analogue inputs to control suction and condensation, and 7 digital inputs for managing compressor thermal switch, high and low pressure as well as generic machine stop alarms.
The presence of the alarm output on relay, of the analogue output for direct management of the condensation fans, or of the analogue output for managing an inverter depend on the device model. For a best maintenance, it is also possible to store in permanent memory the number of hours of operation of each compressor; the maximum reading resolution is in minutes.

Technical

• All the devices can be programmed easily and quickly through the Copy Card

• Connection to the Televis? supervisory system

• All models are expected, furthermore, to communicate through the ModBUS-RTU standard protocol

By using the TTL serial port, all the devices can be programmed easily and quickly through the Copy Card.
The same serial port allows to connect EWCM 400 devices to the Televis? supervisory system, in order to implement remote management of compressor plant. All models are expected, furthermore, to communicate through the ModBUS-RTU standard protocol, which is provided with a complete documentation.
Temperature values can be displayed in °C or °F, with and without the decimal point, respectively. A special rotation algorithm allows to activate compressors based on their operation hours, thus optimizing startings and ensuring a longer lifetime. For a best maintenance, it is also possible to store in permanent memory the number of hours of operation of each compressor; the maximum reading resolution is in minutes.