Nutbro 3CH-RELAY-Metal DMX512 Relay Controller

1. Introduction

The Nutbro 3CH-RELAY-Metal DMX512 Relay Controller is designed to convert DMX512 digital signals into three independent relay switch outputs. This device allows for the control of various AC or DC loads, such as lighting or other electrical equipment, via a DMX512 control system. It features a robust metal casing and supports a wide input voltage range.

2. Specifications

3. Product Overview

The device features DMX512 input and output ports, AC power input, and screw terminals for connecting the three relay outputs. DIP switches are provided for DMX address and function settings.

Figure 1: Nutbro 3CH DMX512 Relay Controller showing input and output ports. This image displays the Nutbro 3CH DMX512 Relay Controller, highlighting its AC110V-220V input and the three relay output channels, each rated for 5A. The DMX512 input and output ports are also visible.

Figure 2: Nutbro 3CH DMX512 Relay Controller user manual diagram with wiring and DIP switch settings. This diagram from the user manual illustrates the wiring connections for the Nutbro 3CH DMX512 Relay Controller, showing AC power input, DMX512 signal flow, and relay outputs connected to loads. It also details the DIP switch settings for DMX address configuration and function selection, along with a table explaining DMX data values for relay switching.

4. Setup

4.1 Safety Information

• Ensure the input voltage of this controller is correct. Incorrect voltage or high voltage may cause damage.
• Never connect the wires directly in case of short circuit.
• Lead wires should be connected correctly according to the colors in the wiring diagram (refer to Figure 2).

4.2 Wiring Connections

1. Power Input: Connect the AC110-220V power supply to the designated AC input terminals.
2. DMX512 Input: Connect your DMX512 controller's output to the DMX512 IN port using a 3-pin DMX cable.
3. DMX512 Output: If daisy-chaining to other DMX devices, connect from the DMX512 OUT port.
4. Relay Outputs: Connect the loads (e.g., lights) you wish to control to the three relay output terminals. Each channel supports up to 5A for both DC (5-48V) and AC (5-250V) loads. Ensure correct polarity for DC loads and proper wiring for AC loads.

4.3 DMX Address Setting

The DMX address is set using DIP switches 1 through 9. These switches represent a binary value, where 'ON' corresponds to 1 and 'OFF' to 0. The sum of the 'ON' switch values determines the DMX start address.

• DIP Switch 1: Value 1
• DIP Switch 2: Value 2
• DIP Switch 3: Value 4
• DIP Switch 4: Value 8
• DIP Switch 5: Value 16
• DIP Switch 6: Value 32
• DIP Switch 7: Value 64
• DIP Switch 8: Value 128
• DIP Switch 9: Value 256

Example: To set the DMX address to 37, turn DIP switches 1 (value 1), 3 (value 4), and 6 (value 32) to the 'ON' position. All other DIP switches (2, 4, 5, 7, 8, 9) should be 'OFF'.

4.4 Function Setting

DIP switch 10 (labeled FUN/OFF) controls the operating mode of the device. For standard DMX signal reception and relay control, ensure DIP switch 10 is set to the 'OFF' position.

The manual also indicates various test modes (Mode 1-5) which can be activated by specific DIP switch combinations. These are typically used for testing the relays independently of a DMX signal. Refer to Figure 2 for detailed mode settings if advanced testing is required.

5. Operating Instructions

Once the DMX address and function settings are configured, and all connections are secure, the relay controller is ready for operation.

1. DMX Signal Reception: The controller will listen for DMX signals on its assigned start address and the two subsequent channels (since it occupies 3 DMX addresses).
2. Relay Control:
   • If the DMX value for a channel is between 0 and 127, the corresponding relay will be OFF (open circuit).
   • If the DMX value for a channel is between 128 and 255, the corresponding relay will be ON (closed circuit).
3. Channel Assignment: The first DMX address controls Relay 1, the second DMX address controls Relay 2, and the third DMX address controls Relay 3.

6. Maintenance

The Nutbro 3CH-RELAY-Metal DMX512 Relay Controller is designed for reliable operation with minimal maintenance.

• Cleaning: Periodically clean the exterior of the device with a soft, dry cloth. Do not use liquid cleaners or solvents.
• Inspection: Regularly check all wiring connections to ensure they are secure and free from damage.
• Environment: Ensure the device is operated in a dry, well-ventilated environment, away from excessive heat, moisture, and corrosive substances.

7. Troubleshooting

• No Power:
  • Check the AC power connection and ensure the power source is active.
  • Verify the input voltage is within the specified AC110-220V range.
• Relays Not Switching:
  • Confirm that the DMX512 input cable is securely connected.
  • Verify that the DMX start address is correctly set using the DIP switches (1-9).
  • Ensure DIP switch 10 (FUN/OFF) is in the 'OFF' position for DMX control.
  • Check the DMX values being sent from your DMX controller; they must be 128-255 for the relay to switch ON.
  • Inspect the wiring to the loads connected to the relay outputs.
• Intermittent Operation:
  • Check for loose DMX or power connections.
  • Ensure there is no interference from other electrical equipment.

8. Warranty and Support

This product comes with a one-year warranty from the date of purchase. During this period, repairs or replacements will be provided for manufacturing defects. The warranty does not cover damage caused by artificial situations, misuse, improper installation, or unauthorized modifications.

For technical support or warranty claims, please contact your retailer or the manufacturer with your purchase details.