What's new
By:
Car Wash Forum

This is a sample guest message. Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

Power supply

T

txheat

Member
Has anyone replace a power supply, Omron s8vs-09024a, in main controller box? Do we need to program after installation?
 
cfcw said:
I never had. Have you confirmed it is indeed the power supply and not a 24V short somewhere?
Click to expand...

yea there's a short but i cant find it. What is the procedure for finding the shortage? I have already start with the eyes and prox..but no luck.
 
Start at the power supply and unhook a wire to see if the power comes back up. IIRC these are internally and electronically fused, and when the short is removed it should just come back up. Move away from the unit and keep unhooking/unplugging until you narrow it down.
 
The easiest way on coleman equipment is to unplug the communication cable at the bottom of the ECC. If the red lion powers back up, then you know the problem is going out to the gantry. In order of frequency, I would check all banner eyes, and then the prox switches.

If the unit does not power back up when you disconnect the comm cable it is most likely one of the floor eyes.

If you have isolated it to the gantry, you can either trip the eye relay on a 2.0 or disconnect the transmitter eyes from the OD 16 output. That will turn off all transmitter eyes and may help further isolate the problem. Look at the eye connectors for physical signs of overheating.

90% of the 24 DC shorts on 2.0s and fusion Xs unit are caused by the banner multi channel eyes. They often short at the connection to the cable. Replace those with the long cable that doesn't have a connector and your reliability will increase dramatically.
 
Thanks...i had to call down JC tech to troubleshoot the problem. We end up replacing 2 cables and 4 eyes. One of the eyes was the new version without pigtail disconnect. There goes the theory that those would last longer then the quick disconnect.
 
txheat said:
Thanks...i had to call down JC tech to troubleshoot the problem. We end up replacing 2 cables and 4 eyes. One of the eyes was the new version without pigtail disconnect. There goes the theory that those would last longer then the quick disconnect.
Click to expand...


Well, you're not very lucky then. But I assure you they will make your unit more reliable as they are swapped out.
 
You must log in or register to reply here.
Back
Top