Testing

V1.98 21/06/06

 

 

19.53 WIRE SECTION VALVES

Figure 71: 3-wire connector

Overview

The Boom Section Drive outputs from the controller simply apply a 12volts signal to Pin-3 of the section valve to OPEN. 0volts CLOSES the valve. The 3-wire section valves require constant 12volt (Pin-1) and constant Gnd (Pin-2) as well as the 12v Signal to Pin-3.

Section Valve Drive Test

Set controller to Manual mode.

1.Using a digital Multimeter set to 20vdc connect probes to Pin-1 and Pin 2 on section one Valve tail. Confirm 12volts.

Repeat this for all section valve tails.

2.Switch Master Switch ON.

Using a digital Multimeter set to 20vdc connect probes to Pin-2 and Pin-3 on section one Valve tail. Turn on Section 1. Confirm 12volts on Pin 3. Turn Section 1 OFF and confirm 0volts. Repeat this process for all section valves.

19.6PWM REGULATOR VALVE

Figure 72: PWM Regulator Valve connector

Overview

The proportional drive output allows control of PWM Hydraulic Solenoid valves.

Pin- 1 provides a constant 12volt supply to the coil while Pin-3 delivers a "Switched Gnd PWM" signal.

Prop Output Test

Connect an automotive test light between Pin-1 and Pin-3.

Switch a tank ON and Master Switch ON.

•With the controller set to Manual press and hold the Increase button. The light should glow progressively brighter in 1 second time increments to full brightness.

Stop pressing the Increase Button. The light should maintain the current brightness.

Press the Decrease Button. The Light should become progressively dimmer.

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Topcom X20 manual 19.5 3 Wire Section Valves