Guest
Guest
G
Hi all,
Just thought I'd ask you if what I have done sounds right. I'm hooking up a Allen Bradley PLC SLC5/03 with 24 vdc cards (dc sinking and dc sourcing)in my simulator I built and want to double check if my wiring sounds right because this PLC belongs to my workplace. I looked up the schematics for the cards and don't want to get super technical as the writing could go on and on, but looking for a rough check. Here goes,
1. I have 120VAC coming from plug to term. strip to fuse to PLC for main power.
2. I have the ground of the 120VAC going to term. strip to PLC marked "chassis ground".
3. I have 120 VAC from term strip to 24 vdc power supply to a d.p.s.t. rocker arm switch that sends 24 vdc to an led with a resistor inline and the other side of the switch sends 24 vdc to the input card.
4. The 24vdc sent to the above has all the leds neg's tied together and goes to a fuse and then to the dc com on the input card mentioned in #3.
5. As for the output card I have all the neg's tied together like mentioned above to a fuse to the dc com screw in the output card.
6. Output card positives go to a inline resistor and then to a output led.
I do have a fan that runs whenever the plug is receiving power (fused) to prevent overheating.
Let me know if you think this should cause no harm to the PLC or cards, backplane, etc... If anyone would care to guesstimate what amp fuse for the PLC main power I'm listening, otherwise I'll run power through a amp meter and go from there.
Thanks for you input (no pun intended, well, I guess so)
Dr Oldz
Just thought I'd ask you if what I have done sounds right. I'm hooking up a Allen Bradley PLC SLC5/03 with 24 vdc cards (dc sinking and dc sourcing)in my simulator I built and want to double check if my wiring sounds right because this PLC belongs to my workplace. I looked up the schematics for the cards and don't want to get super technical as the writing could go on and on, but looking for a rough check. Here goes,
1. I have 120VAC coming from plug to term. strip to fuse to PLC for main power.
2. I have the ground of the 120VAC going to term. strip to PLC marked "chassis ground".
3. I have 120 VAC from term strip to 24 vdc power supply to a d.p.s.t. rocker arm switch that sends 24 vdc to an led with a resistor inline and the other side of the switch sends 24 vdc to the input card.
4. The 24vdc sent to the above has all the leds neg's tied together and goes to a fuse and then to the dc com on the input card mentioned in #3.
5. As for the output card I have all the neg's tied together like mentioned above to a fuse to the dc com screw in the output card.
6. Output card positives go to a inline resistor and then to a output led.
I do have a fan that runs whenever the plug is receiving power (fused) to prevent overheating.
Let me know if you think this should cause no harm to the PLC or cards, backplane, etc... If anyone would care to guesstimate what amp fuse for the PLC main power I'm listening, otherwise I'll run power through a amp meter and go from there.
Thanks for you input (no pun intended, well, I guess so)
Dr Oldz