ATR621

Programmable Process Controller

• Features
• UL, CE.
• Ramp and Soak Generator
• Set Point Display
• Digital Input
• 4 Digit Temperature Controller
• PC Programmable
• Memory Card Programmable
• 72 x 72 mm cut out
• Isolated
• Output up to 3 relays
• Optional Modbus

• Buy Online  

• PID and Temperature Controllers

• Manual

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Programmable Process Controller

The ATR621 is a panel-mounted, 73 x 73 mm multi-cycle process controller capable of handling complex temperature management tasks. It can store up to 15 different programs, each with up to 45 steps for heating, cooling, and soaking processes. The controller includes digital inputs for handling door-open interruptions, emergency stops, or holding temperature functions.
The ATR621 offers up to three relays, along with voltage and current outputs, and is available with an optional Modbus RS485 interface for enhanced communication. It accepts a wide range of sensor inputs, including K, J, S, and R type thermocouples, Pt100 RTDs, voltage, and mA signals.
The device features two 4-digit displays: one for the process variable and the other for the set point. With the optional gasket, the ATR621 can achieve up to IP54 environmental protection.
Programming the ATR621 can be done via the front panel keypad or using PC-based software, which also allows for monitoring multiple units. The memory card feature enables quick cloning of configurations across multiple controllers, making it ideal for high-speed setups.
Desired control is maintained with PID and auto-tuning functionalities, ensuring precise temperature management across various applications.

ATR621 Wiring Connections

Power supply	ATR621-12ABC	ATR621-13ABC-T	ATR621-14ABC
Positive	Terminal 1	Terminal 1	Terminal 1
Negative	Terminal 2	Terminal 2	Terminal 2
Output
Relay 1
Common	Terminal 4	Terminal 4	Terminal 4
Normally Open	Terminal 3	Terminal 3	Terminal 3
Normally Closed	Terminal 5	Terminal 5	Terminal 5
Relay 2
Common	Terminal 7	Terminal 7	Terminal 7
Normally Open	Terminal 6	Terminal 6	Terminal 6
Normally Closed	Terminal 8	Terminal 8	Terminal 8
Relay 3
Common		Terminal 7	Terminal 7
Normally Open		Terminal 9	Terminal 9
Relay 4
Common			Terminal 10
Normally Open			Terminal 11
SSR Output	Negative 10	Negative 10
	Positive 11	Positive 11
Sensor Input
Thermocouples	Positive 18	Positive 18	Positive 18
	Negative 17	Negative 17	Negative 17
Volts and mA	Positive 18	Positive 18	Positive 18
	Negative 17	Negative 17	Negative 17
RTD Pt100	Terminal 17	Terminal 17	Terminal 17
	Common 16	Common 16	Common 16
	Common 18	Common 18	Common 18
Digital input	Terminal 12		Terminal 12
	Terminal 13		Terminal 13
RS485		Positive 14
		Negative 23

ATR621-12ABC

• Inputs: One analog input
• Outputs: Two relay outputs, rated at 8 A each
• Power Supply: Compatible with 24 to 230 V AC/DC

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ATR621-13ABC-T

• Inputs: One analog input
• Communication: Modbus
• Outputs: Analog output and three relay outputs, rated at 8 A each
• Power Supply: Compatible with 24 to 230 V AC/DC

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ATR621-14ABC

• Inputs: One analog input, one digital input
• Outputs: Three relay outputs, rated at 8 A each, and one relay output rated at 5 A
• Power Supply: Compatible with 24 to 230 V AC/DC

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