Topcon A2677 manual Wire Section Valves, Section Valve Drive Test, Switch Master Switch on

X20 Sprayer Reference Manual

3-Wire Section Valves

Figure 12-5. 3-Wire Connector

The Boom Section Drive outputs from the controller simply apply a 12 Volt signal to Pin-3 of the section valve to open. 0 Volts closes the valve.

The 3-Wire Section Valves require constant 12 Volt (Pin-1) and constant Gnd (Pin-2) as well as the 12V signal to Pin-3.

Section Valve Drive Test

1.Set the controller to Manual mode

2.Using a digital Multimeter, set to 20vdc connect probes to Pin-1 and Pin 2 on section one Valve tail

3.Confirm 12 Volts

4.Repeat this for all section valve tails.

Switch Master Switch ON

1.Using a digital Multimeter, set to 20vdc connect probes to Pin-2 and Pin-3 on section one Valve tail

2.Turn on Section 1

3.Confirm 12 Volts on Pin 3

A2677 Rev 1.5 12-7