1747-L542 Power Problem.

jC.

Member
J
Join Date
Jul 2010
Location
Australia
Posts
26
Ok, so I have a 1747-L542 Series C here...I put it in the rack (1746-A4, power it up and the lights come on the processor and the power supply for about 1 second then turn off. I've tried different power supplys, racks so I'm sure it's the processor that's causing the problem. Any Ideas?

Cheers.
 
Can't help you with your problem but I admire your patience.

You might try removing any modules and see what happens. If that works put one in at a time.

See PDF below for some trouble help
 
Last edited:

Similar Topics

R
SLC 500 1747-L542 CPU - Not able to go online.
Good Morning , I have a SLC 500 rack with a 1747-L542 CPU and 2 DeviceNet scanner cards. I am having a terrible time going online with this...
Replies
13
Views
4,376
Geospark
Geospark
CENTER
1747-l542 fault code
Does anyone know what a 358H processor fault code is.
Replies
4
Views
1,928
CENTER
CENTER
C
SLC 5/04 1747-L542 Cabling
So I recently purchased a 10 slot rack with a SLC 5/04 1747-L542 cpu. I want to hook up an HMI screen using the RS 232 port but I dont know how...
Replies
3
Views
1,873
cma189
C
geniusintraining
Allen Bradley 5/04 fault 1747-L542
Hello everyone, I am having issues with a 5/04, it started a few weeks ago, if the CPU is powered off then it has issues rebooting, I have found...
Replies
8
Views
6,622
Mechtrician
M
E
1747-sn FAULT
hello I am getting a 57h fault - Specialty I/O module has not responded to a lock shared memory command within the required limit. Fault randomly...
Replies
2
Views
99
Etech883
E
Back
Top Bottom