DYNISCO MODEL ATC770 1/4 DIN Self-Tuning Pressure and Process Controller Description The ATC770 pressure and process controller, with its unique self - tuning algorithm, makes it possible to set up a process such as extrusion, quickly, easily, and with a minimum of operator adjustment. Inputs include 350 Ohm strain gage, DC voltage and DC current, making the ATC770 compatible with a wide variety of process transmitters, and thus able to control a number of factory functions. It is fully configurable with a combination of jumpers and menu options, as well as providing a selection of readout option. Features Benefits • Unique self - tuning algorithm • Set and forget • 3 levels of parameter security • Allow different authorization levels • 3 fully programmable and assignable alarms • Protect process with flexible schemes • Dual 5 digit displays (red/green) and analog bargraph • Provide full process information • Automatic ramp to setpoint • Raise or lower setpoint under controlled conditions • 24 Vdc transmitter power supply • Provides excitation for 2 or 4 wire transmitters • Optional RS - 485 serial communications, selectable • Send and receive information from PLCs, for Modbus or Jbus PCs, etc. • Displays setpoint; deviation from setpoint; output %; • Display process in familiar units motor RPM; peak (high or low) • IP65/NEMA 4X rated • Useable in harsh environments c Specifications Performance Characteristics Power supply: 100 to 240 Vac 50/60 Hz, switching Storage temperature: -20˚ to +70˚C Power consumption: 15 VA maximum Humidity: Maximum 85% RH non - condensing Operating temperature: 0˚ to 50˚C Weight: 1.43 lbs Inputs Input: Selectable between strain gage and linear via jumper and configuration Auxiliary power supply: 24 Vdc/1.5 W for two or four wire transmitter Strain gage input: 350 Ohm, 2 to 4 mV/V; excitation 10 V ±7% Input impedance: <10 Ohm for linear current input; >165 kohm for linear voltage input Input signal: -25% to +125% full scale Sampling time: 50 ms typical Shunt calibration: With or without shunt resistor (40.0% to 100.0%) Digital input: One input, voltage free contact closure. May be programmed for one of Linear input: Selectable between 0 to 5 Vdc, 0 to 10 Vdc, 0 to 20 mA, the following functions: a. Alarm reset b. Peak reset c. Alarm and peak reset 4 to 20 mA scaleable Control Algorithm Control type: PID with Integral Preload and Anti - Reset Windup Outputs Control output: Selectable between 0 to 10 Vdc, -10 to +10 Vdc, Retransmission output: Selectable between 0 to 10 Vdc, -10 to +10 Vdc, 0 to 5 Vdc, 0 to 5 Vdc, 0 to 20 mA, 4 to 20 mA 0 to 20 mA, 4 to 20 mA fully scaleable high and low limits (allows direct or reverse action) Serial Communications (Optional) Serial interface: RS - 485 Protocol supported: Modbus and Jbus, selectable Other Options Remote setpoint input: 0 to 20 mA, 4 to 20 mA, 0 to 10 V Four opto - isolated digital inputs DYNISCO MODEL ATC770 1/4 DIN Self-Tuning Pressure and Process Controller 3.87 (97) + +SIG 56 45 NO 23 12 .61 (15.5) .6 –SIG – 57 46 C 24 13 (15) + 58 47 NC 14 CAL2 3 .06 (1.5) – NO 59 48 4 6.01 (143.5) A/A +EXC 60 49 C 16 5.04 (128) B/B 61 50 NC 17 -EXC CAL1 C 62 51 C NC/NO 63 52 64 53 100/248 VAC~ LN + 65 54 21 21 66 55 22 – A1 A2 A3 SMRT MAN RSP REM SP 3.62 DEV (92) OUT% 4.2 RPM PEAK (108.4) % 0 25 50 75 100 ACT770 3.62 (92) 3.8 (95.8) All dimensions are in inches (millimeters) unless otherwise specified 36.289.01D Ordering Guide Model External Setpoint Options Power Code Description Code Description Code Voltage 0 Not present 2 Auxiliary power supply & 3 100 - 240 Vac (switching) ATC770 1 Analog, remote setpoint retransmission output* 5 24 Vac/Vdc (switching) 3 RS - 485 and 4 digital inputs * standard with basic model Ordering Example: ATC770 - 0 - 3 - 3 • Basic ATC770 with RS - 485 and 4 digital inputs for 100 - 240 - Vac operation Delivery Please call for specific delivery information. DIG4 RS485 VDC OUT2 DIG3 SUPPLY mA/V DIG2 DIG1 ALARM2 ALARM1 ALARM3 RSP A/M FUNC + –