Relay output module SM 322 contacts not closing

[minerman]

Hello,

I have a new relay output module, SM 322. When I switch the relays on in my progrmaming, no lights on the PLC light up. The relays do not close. What am I doing wrong?

Thanks!

 

[moggie]

Hello,

I have a new relay output module, SM 322. When I switch the relays on in my progrmaming, no lights on the PLC light up. The relays do not close. What am I doing wrong?

Thanks!

Is the SF LED on or Off ?
Have you connected L1 and N (to terminals 1, 10, 11, 20)
Have you set the correct address in the hardware config?

 

[minerman]

Is the SF LED on or Off ?
Have you connected L1 and N (to terminals 1, 10, 11, 20)
Have you set the correct address in the hardware config?

SF Light is Off
L1 & N are only connected to 1 & 20. Manual does not show them connected to 10 or 11.

Yes, I have set the Q address in the HW config to 4. I am monitoring the outputs in the HW config and it shows them on.

 

[moggie]

L1 & N are only connected to 1 & 20. Manual does not show them connected to 10 or 11.

Yes, I have set the Q address in the HW config to 4. I am monitoring the outputs in the HW config and it shows them on.

What is the exact part number for the SM 322 that you are using.

 

[minerman]

What is the exact part number for the SM 322 that you are using.

Relay output module SM 322; DO 8 x Rel. AC 230 V/5 A;​

(6ES7322-1HF10-0AA0)

Actually, this module doesn't have an SF LED. When I view it in the HW config, the status is: "Module available and o.k."

 

[minerman]

Also, thank you for helping me. This is a very important project that I'm running out of time on!

 

[minerman]

If it helps, this is communicating via a IM153-4 remote module. Although, I don't think this is a problem as I have a regular output module in the same rack that is working fine.

 

[minerman]

Here is my exact wiring:

1: +24VDC
2:
3: Output Wire
4: +24VDC
5:
6:
7:
8: Output Wire
9: +24VDC
10:
11:
12: Output Wire
13: 120VAC
14:
15:
16:
17: Output Wire
18: 120VAC
19:
20: 24VDC Neutral
21:
22:
23: Output Wire
24: 120VAC
25:
26:
27:
28: Output Wire
29: 120VAC
30:
31:
32: Output Wire
33: 120VAC
34:
35:
36:
37: Output Wire
38: 120VAC
39:
40:

Absolutely no lights are on, on this module.

 

[minerman]

 

[moggie]

If it helps, this is communicating via a IM153-4 remote module. Although, I don't think this is a problem as I have a regular output module in the same rack that is working fine.

Your wiring looks ok compared to the manual.

Check the hardware config, recompile and download again

 

[L D[AR2P#0.0]]

Except he has nothing connected in terminal 20

 

[minerman]

Except he has nothing connected in terminal 20

I do, I'm sorry I forgot to list that. 24VDC Neutral is connected there.

I also measured with a meter across 1 & 20 to verify there is 24VDC, with proper polarity.

 

[minerman]

Your wiring looks ok compared to the manual.

Check the hardware config, recompile and download again

I just did this. Still not working.

I have no lights, so I thought maybe it would be the supply power or possibly the module is not seated properly. However, I think I've ruled out both. I measured 24vdc with a meter and I have other modules on both sides of this module working properly.

 

[minerman]

Well, after hours of troubleshooting, I have solved the problem!

The terminal base was secured down enough. Despite removing and reseating the base several times, the connection was never good enough. There's a screw in the middle of the base, that needs tightened down to secure the connection. The wiring to the module had covered up the screw and I wasn't even aware it existed until now.

Well, that only took about 4 hours. lol

Thanks for your help guys!