Electrical Installation

Safety First: Do not perform wiring while the unit is energized. Before any wiring work, turn off the power and disconnect the power supply.

6-Pin Quick Connector Pin Definition

• Connect the supplied cable to the power supply and the required communication interfaces. Unused wires must be insulated with protective material to prevent electric leakage or short circuits.

• Before opening the unit or performing any wiring, turn off the power and disconnect the power supply.

• Due to space limitations, the label on the side of the unit and the following diagrams show wire pin definitions only.

• The 6-pin quick connector wire color assignments are defined as follows:

1	Brown	24 VDC (+)
2	Black	RS485 (B-)
3	Green	RS485 (A+)
4	Orange	NPN output (+)
5	Purple	4~20mA (+)
6	Blue	0 VDC (-)

24V DC Power Wiring Diagram

• Brown wire: 24 VDC (+)

• Blue wire: 0 VDC (–)

4–20 mA Analog Output Wiring Diagram

• Brown wire: 24 VDC (+)

• Blue wire: 0 VDC (–)

• Purple wire: 4–20 mA (+)

NPN Output Wiring Diagram

• Brown wire: 24 VDC (+)

• Blue wire: 0 VDC (–)

• Orange wire: NPN Output (+)

RS-485 Two-Wire Wiring Diagram

• Black wire: RS-485 B (–)

• Green wire: RS-485 A (+)

RS-485 Wiring Recommendations

• It is recommended to use shielded 24 AWG twisted-pair cable and connect devices in a daisy-chain configuration. Do not use star or ring wiring.

• For long cable runs, install termination resistors at both the master and the farthest device. A typical value is 120 Ω, but the actual value should be calculated based on the cable specifications.

• If signal instability occurs, consider adding bias resistors at a point along the line.

• For the supplied 6-core cable, when used for RS-485 communication, trim excess length to minimize noise interference. Connect the shield braid to the main communication wires and ground it.

• In areas with heavy signal interference, the software may need to poll multiple times to receive a response. Implement a repeated polling mechanism in the communication program to distinguish between signal interference and actual device offline conditions.