DETAILED DESCRIPTION

ATR401
Controller 48x96mm (1/8 DIN), Single/Double Control loop, characterized by high configurability of the inputs and outputs.
The two analogue inputs can be configured for a vast range of sensors with the option of controlling two distinct processes or managing mathematical operations (sum, difference, average) between the two processes. Power supply range from 24 to 230V AC/DC. Outputs can be selected as control, alarm, analogue retransmission. Useful power supply range from 24 to 230V AC/DC with galvanic isolation from the network, galvanic isolation between inputs and outputs and isolated serial RS485.
The PID hot-cold control algorithm can also be used on systems with cascading control (remote setpoint) through image input.
The functions of the ATR401 software include open-close logic for valve control, Soft-Start function with control of the climb gradient (degrees/hour), TA input with maximum current threshold alarm, external activation from digital input of programmable functions.

Specifications

• Power supply: 24..230 V AC / DC 
• Display: 4 digits 0,4" green + 4 digits 0,3" red
• Sealing: IP54 (IP65 with gasket), Box and Terminal bloks: IP20
• Tuning: manual or automatic
• Analog inputs 2: Res. 16 bit, selectable for TC type K, S, R, J, (automatic compensation of the cold junction 0..50 °C, ± 0,2% F.S. ± 1 Digit F.S.), thermoresistance PT100, PT500, PT1000, Ni100, PTC1K. NTC10K, (ß 3435K), process signals 0..10V(54000 points), 0/4..20mA (40000points), 0..40mV (16000 points), potentiometer 6KΩ, 150 KΩ (50000 points)
• Digital input 1: PNP, 1...4 setpoints selection, Hold, Run, Tuning launch, automatic / manual selection, pre programmed cycle start, heating / cooling regulation, local / remote setpoint switch
• Current transformer input 1: 50 mA (acqusition time 100 ms - overlapped to AI2 )
• Serial communication: RS485 Modbus RTU - Slave (code-T)
• Control algorithms: ON - OFF with hysteresis, P., P.I., P.I.D., P.D. time proportioned
• Soft-Start: Rising gradient expressed as Degrees / Hour
• Alarm modes: Absolute / Threshold, band, High / Low deviation. Alarm with optional manual reset. Loop Break Alarm function