PRO300/330 with 7-Wire Harness DC Busy Signal Installation

Installing the Airwallet PRO300/330 DC FEEDBACK

This guide is ONLY for the Airwallet units with 7 wires on the harness. DO NOT use this guide with 8-wire harnesses! Refer to the individual manufacturer installation guide for 8-wire connections.

The Airwallet units ship with the AC voltage feedback installed by default. Some machines use DC voltage for the feedback and this document will walk you through the process of installing your Airwallet Pro330 to your machines with DC Voltage Busy signals. This is for reference only and some machines may vary with the connections and color of wires.

Airwallet PRO300/330

INSTALLING FEEDBACK WIRES

If feedback for the busy signal is desired, you will need to modify the Airwallet unit to accommodate for the low voltage feedback of a machine.

Please note: Not all controls have the feedback option and the manufacturer should be consulted to confirm compatibility.

MODIFYING THE AIRWALLET UNIT

In order to modify the Airwallet unit, you will need to access the internals of the unit.

CAUTION: HIGH VOLTAGE! Always power down the machine prior to opening the Airwallet unit!

1.       Open the Airwallet unit by removing the four (4) T10 Torx screws from the bottom of the unit. And open the Unit cover.
2.      Remove the control board from the unit and locate the wire connection ports. These are green and have screws on each position.
3.      Locate WIRE 5 and loosen the screw holding it in place with a #0 Phillips screwdriver.
4.     Move the WIRE 5 from PORT 10 to PORT 7. You may need to loosen the screw before you are able to insert the wire. Tighten down the retaining screw to ensure the wire will not come out.
5.      Reassemble the unit and proceed to the Airwallet Dashboard for the unit and set the busy signal to LOW
6.      Using WIRE 5 and WIRE 6 on the Airwallet unit, connect to DC output connection on the machine control board. WIRE 5 is DC – and WIRE 6 is DC +

This port may not have anything plugged into it and it is up to the installer to provide the harnesses necessary to use this plug.

Tags:
DC, Feedback, Busy Signal, LOW, HIGH

Updated on: 22/10/2026

Was this article helpful?

Thank you!