DETAILED DESCRIPTION

ATR421
Programmer 48x96mm (1/8 DIN), single control loop. Allows the programming of 15 cycles/programs that can provide up to 45 steps/segments, all of which can be configured by the user as raise/maintain/lower. Programming mode of the work cycle that is intuitive and simple to use even for inexpert operators.
Step end wait software functions (in case of a delay of the process on the programmed setpoint value) and Cycle Recovery mode (after a power cut-off) are the main features of this programmer that has been specifically designed for the automation of industrial kilns, climatic chambers, dryers and the management of thermal processes in general that require the programming of cycles/curves with control of the process variable in relation to time.
Universal input and outputs that can be set as control, alarm/auxiliary analogue retransmission and/or serial RS485. All options can be configured from the keypad without selecting external Jumpers. Useful power supply range from 24 to 230V AC/DC with galvanic isolation from the power supply and between inputs and outputs.
MEMORY-CARD or parameter setting software help the installer configure the device quickly and easily and LABSOFTVIEW records trends.

Specifications

• Dimensions: 48 x 96 (front panel) x 123 mm
• Power supply: 24...230Vac/dc ±15% 5 
• Display: 4 digits 0,4" green + 4 digits 0,3" red
• Operating conditions: Temperature 0-45 °C, humidity 35..95 RU% (non condensing)
• Sealing protection: IP65 (Front panel) , IP20 (Box and Terminal bloks)
• Quick set-up options: Memory Card with / without battery, software LABSOFTVIEW
• Inputs: 1 x configurable (TC, K, J, S, R, PT100,PT500, PT1000, Ni100, PTC1K, NTC10K (B 3435K), 0/4..20 mA, 0..10 V), 1 χ digital input (1...9 cycle selection, Hold, Run, "Open door" lock), 1 x potentiometer input (Position signal by potentiometer for servo-valves / motorized-valves)
• Outputs: 2...4 x Relays, 1 x 1 SSR24, 1 x AnalogueSelection (  4...20 mA or 0...10 Vdc for command or retransmission PV/SPV)
• Serial communication: RS485 Modbus RTU - Slave
• Software features: Control algorithms (ON - OFF with hysteresis, P., P.I., P.I.D., P.D. time-proportioned)
• Tuning: manual or automatic
• Data protection: Lock of control / alarm setpoint, Access to parameters by password
• Alarm modes: Absolute / Threshold, band, High / Low deviation, timed auxiliary programmable for single steps
• Gas mode: Open / Close logic for motorize valves, management of burners and fan, GID selection (management of burners during falling steps)
• Waiting function: Special function to compensate differences SPV / PV in case of overloaded system
• Cycle recovery: Resume the cycle after unexpected power failure
• Setpoint controller mode: Regulation on a fixed setpoint (function might be enabled from general menu or during a cycle in progress)
• Delayed start: Cycle start delayed by decremental timer

Ordering codes

• ATR421-14ABC1: Analogue input + 1 digital input + 4 Relays + 1 digital PNP / Alim. 24..230V AC/DC
• ATR421-12ABC-T1: Analogue input + 2 Relays + 1 digital PNP + 1 Analogue 0/4..20mA / 0..10V + RS485 / Alim. 24..230V AC/DC