TLD-2312: with Advanced Technology Troubleshooting Guide

Synopsis: If you encounter issues with your Ver-Mac traffic lights, there are several different components or situations that can cause them. This troubleshooting article will cover the more common issues.

• Level: Medium
• Time required: 5-10 minutes
• Additional equipment required: Philips screwdriver

1 - Pairing/Radio Issues

High and Free. Not only is the relationship between the antenna and the earth improved by mounting it higher (resulting in better range), but the problem of interrupting the line-of-sight is reduced. Avoid mounting right next to solid objects (walls, buildings, towers, or girders). The resulting reflected radio energy causes drastically reduced efficiency. A minimum of six feet is a good general rule.

Figure 1 - Light positioning

Other electrical things should not be close. Not only do you want to stay away from sources of electrical noise (power lines, electrical motors, solenoids, high-power radio signal sources, or any high-voltage power usage), but you want to avoid the possibility of electrical shock, which can be fatal.

Figure 2 - Power pole

Line-of-sight means "You Can See It From Here!". Operating in the frequency range that it does, the radio carrier is really deflated by obstructions that block the signal path. The only way to assure constant, solid communications is to make sure that the antennas are actually visible to each other. This means that if you took a laser and pointed it from one antenna to the other antenna, the far antenna would have a little red laser dot on it.

Figure 3 - Line of sight/obstacles

Check for water infiltration on the radio card if you cannot sync units together. The radio card is located in the red lamp.

Figure 4 - Radio card

You can see if the unit is talking to the radio by going to Toggle – Options – Radio Diagnostics

Figure 5 - Frequency

• Bad frequency: -105 or higher
• Medium frequency: Between -105 and -78 
• Good frequency: Lower than -78

2 - Head Card Issues

Can you detect it in devices? It should show PICCARTETETE in green in your list.

 Figure 6 - PICCARTETETE in devices

If you can't, check the radio connector going from the touch screen all the way to the head card (on J16 or J18 for the RS+, J20 or J21 for the RS-)

Figure 7 - J6 connector behind the touch screen

Figure 8 - Head card wiring

Figure 9 - Head card

Breakdown

POWER 12V	J11
POWER GND	J14
COM RS+	J16 OR J18
COM RS-	J20 OR J21
RED LAMP	J9 & J10
YELLOW LAMP	J8 & J10
GREEN LAMP	J7 & J10

If the wiring on the head card is OK, check the dipswitches on it. Each head will have its own head card with a different set of dipswitches set to ON and OFF, see below:

Figure 10 - Dipswitches

Head card numbers

Figure 11 - Heads

Dipswitch #1 position	Dipswitch #2 position	Dipswitch #3 position	Dipswitch #4 position
ON	OFF	OFF	OFF	Head card in head #1
N/A	N/A	N/A	N/A	No secondary head card on TLD-2312
N/A	N/A	N/A	N/A	No third head card on TLD-2312

3 - Power Issues

Start by checking your batteries and the connections on the terminals. You can use a voltmeter or load tester to check individual batteries. 

On the touch screen, you can check the battery status by pressing on the batteries on the home page. This will lead you to the Maintenance page, where you will be able to see the battery & solar voltage + amperage.

Figure 12 - Battery icon

Figure 13 - Power Status

You can also use the IPS card to identify power issues. 

Figure 14 - IPS card

The IPS allows the batteries to be managed automatically. If one battery becomes too low or disconnected, the IPS card will switch to the other one.

If batteries are present, one LED will 100% be on (aux. source, OK, LOW, or VERY LOW).

• Aux source = voltage higher than 13.7 volts
• OK = Voltage between 11.5 and 13.7 volts
• LOW = Voltage between 10.92 and 11.5 volts
• VERY LOW = Voltage between 6 and 10.92 volts

4 - Lamp Issues

If one of the lamps is not turning on, start by running a lamp test by going to Toggle - Options - Maintenance and pressing Start Test. If a lamp is not good, you will see an X on it.

You can also filter between the master and the slave unit on the bottom of the screen.

Figure 15 - Maintenance

Using a voltmeter, you can check the + and - connectors on each lamp to ensure they are getting 12 volts. If they are and the lamps are still not lighting up, you will need to replace the lamps.

If they are not getting 12 volts, you will need to backtrack toward the head card and make your way down to the batteries. 

Figure 16 - Lamp wiring from head card

5 - Other Issues

Invalid hardware: Devices do not have the same firmware version, contact support for the update files

Error channel H: Issue with the radio of the unit

Figure 17 - Radio card

If you require any additional help, contact our toll-free number at 1-888-488-7446 or email us at [e-mail]