HVAC temperature controller-limiter ST31ST

analogwith LCD displayheating

Configurable controller with high performance micro processor, control for cooling, heating, humidification, dehumidification. Provides analog outputs (Voltage, current) to control inverter, cooling/heating valve by field conditions and use universal protocol MODBUS RTU to connect HMI or web server. Various protection functions are embeded for compressor to provide safety. Record the status of alarms situation for easy maintenance. • POWER : Supply : 100-240VAC 50/60Hz • MICOM : MCU : ATmega2560 • DI : Port : 16 points(24VDC) / 1point (Water level) • Power : None • DO : Port : 16 points / 1point(SSR) • Method : Relay contact / PWM • Relay : 250V 3A / 24VDC • AI : Temp. : 1ch(PT100Ω) • Humidity : 1ch(0-3VDC) • CT : 1ch • AO : Port : - • Comm. : Port : 4ch • Address : 1 ~ 99 • Baudrate : 9600, 19200, 38400bps • Parity bit : None • Stop bit : 1 bit • Protocol : MODBUS(1ch), Seungil(2ch), Master/Slave(1ch) • RTC : Schedule : Daily, Weekly, Yearly • Circu. : Operation : -20~70℃, 5~95%(Non-condensate)