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How do I wire and power an AGD650 detector?

 Power Requirements

The AGD650 supports:

  • 24V AC/DC
  • 42V AC

Voltage tolerance:

±20%

Fuse Protection

The detector can draw an inrush current of up to:

  • 15A for less than 5ms during startup

Recommended protection:

  • 3A circuit breaker
  • 3A inline fuse

Earth Connection

The earth/ground conductor must always be connected.

Failure to connect earth may result in unreliable operation or safety concerns.

Output Configuration

The AGD650 provides two independent opto-isolated outputs:

Output Function
Opto 1 Zone 1 Detection
Opto 2 Zone 2 Detection

Each output includes:

  • Common
  • Normally Open (NO)
  • Normally Closed (NC)

Wiring Diagram

Bulgin Connector Diagram

Single Cable 24V ac/dc, 42V ac Supply Wiring (1m bulkhead lead with Bulgin connector)
Pin No. Wire Colour Function Power Off Power On - No detect Power On-  Detect Notes
1 Red 24V ac/dc, 42V a  - - - -
2 Black 0V ac/dc  - - - -
3 Green Earth/Ground  - - - Must be connected
4 White Opto 1/2 Common  - - - -
5 Yellow Opto 1 N/O  N/O N/C N/O Zone 1
6 Blue Opto 1 N/C  N/C N/O N/C Zone 1
7 - Not Connected  - - - -
8 Brown Opto 2 N/O  N/O N/C N/O Zone 2
9 Violet Opto 2 N/C  N/C N/O N/C Zone 2

 

Single Cable 24V ac/dc, 42V ac Supply Wiring (5m flying lead)
Wire Colour Function Power Off Power On - No detect Power On-  Detect Notes
Red +24V ac/dc, 42V a  - - - -
Grey 0V ac/dc  - - - -
Green Earth/Ground  - - - Must be connected
White Opto 1/2 Common  - - - -
Yellow Opto 1 N/O  N/O N/C N/O Zone 1
Blue Opto 1 N/C  N/C N/O N/C Zone 1
- Not Connected  - - - -
Brown Opto 2 N/O  N/O N/C N/O Zone 2
Pink Opto 2 N/C  N/C N/O N/C Zone 2

 

Opto-Coupler Ratings

Specification Value
Maximum Current 60mA
Maximum Voltage 60V
On-State Impedance 25Ω

LED Behaviour During Startup

  1. Red LED illuminates for approximately 30 seconds.
  2. Red LED flashes 5 times.
  3. Normal operation begins.

If no detection zones are configured:

  • Red LED remains on continuously.

If zones are configured:

  • Red LED illuminates only when detection is active.

Common Wiring Checks

  • Verify supply voltage is present.
  • Confirm earth connection is fitted.
  • Check output wiring against controller requirements.
  • Verify the red LED startup sequence completes successfully.