KT4R Temperature Controller

Wiring/ Connection

EXTERNAL CONNECTION DIAGRAM

EXTERNAL CONNECTION DIAGRAM
PWR Power supply voltage 100-240 V AC or 24 V AC / DC (Ensure correct polarity when using DC in AC / DC 24 V.)
EV1 Alarm output 1
EV2 Alarm output 2 (optional)
O1 Control output 1
TC Thermocouple input
RTD Resistance temperature detector input
DC DC voltage input or DC current input
RS-485 Serial communication RS-485

COMMUNICATION FUNCTION CONNECTION DIAGRAM (PLC Connection Diagram)

COMMUNICATION FUNCTION CONNECTION DIAGRAM (PLC Connection Diagram)
Note: Terminating resistors (Terminators)
The KT series has a built-in pull-up resistor or pull-down resistor, which serves as the terminating resistor.
For this reason, do not connect the terminating resistor on the communication line.

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