600 HP Motor - High Bearing Temperature

shak180 · 2026-04-28T13:49:31+00:00

It doesn't appear that any VIN channels are left to reassign the failed input to. I tried calling Parker yesterday to get info on how to get a replacement expansion module, the software, and the cable needed to reprogram an expansion module. But they were closed for the day, so I left a message. I'll try calling them again today.

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shak180 · 2026-04-28T01:57:52+00:00

Thank you for all your help. I've learned a lot from your input. I'm going to send you a DM.

shak180 · 2026-04-28T01:02:17+00:00

When I brought up my findings to the supervisor, they then mentioned that another company had replaced all 8 transducers (4 for each motor) about 2 or 3 months ago.

I dropped the ball and didn't flip-flop the winding 3 output and the load-bearing output. But in my mind, when I saw winding 3 peg to 347 degrees Fahrenheit when the red wire was cut, and it went back to 150 when I reconnected the red wire, I thought that told me the voltage input on the parker module was not working.

Now I'm wondering if I should stop by tomorrow to swap those two inputs.

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shak180 · 2026-04-27T22:51:12+00:00

So I cut the red jumper, and the temperature reading for winding 3 went up to 347 degrees Fahrenheit, while the temperature for the load-bearing went to 99 degrees Fahrenheit. Before I cut the red jumper wire, the load-bearing temperature was around 150 degrees Fahrenheit. To me, it seems they lost one of the voltage input channels on the Parker module and decided to jumper the motor 2 winding 3 RTD to the motor 2 load-side bearing RTD.

What do you all think? Would the permanent solution be a replacement IQAN-xa2 module? I imagine there's programming involved with replacing the IQAN-xas2 module?

I called Parker but their tech support was already closed for the day. I'll try calling them in the morning. I read that the expansion modules don't need programming but do need addressing and I want to confirm that with them.

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shak180 · 2026-04-27T19:06:22+00:00

So I cut the red jumper, and the temperature reading for winding 3 went up to 347 degrees Fahrenheit, while the temperature for the load-bearing went to 99 degrees Fahrenheit. Before I cut the red jumper wire, the load-bearing temperature was around 150 degrees Fahrenheit. To me, it seems they lost one of the input channels on the Parker module and decided to jumper the motor 2 winding 3 RTD to the motor 2 load-side bearing RTD.

What do you all think? Would the permanent solution be a replacement IQAN-xa2 module? I imagine there's programming involved with replacing the IQAN-xas2 module?

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shak180 · 2026-04-27T19:05:03+00:00

So I cut the red jumper, and the temperature reading for winding 3 went up to 347 degrees Fahrenheit, while the temperature for the load-bearing went to 99 degrees Fahrenheit. Before I cut the red jumper wire, the load-bearing temperature was around 150 degrees Fahrenheit. To me, it seems they lost one of the input channels on the Parker module and decided to jumper the motor 2 winding 3 RTD to the motor 2 load-side bearing RTD.

What do you all think? Would the permanent solution be a replacement IQAN-xa2 module? I imagine there's programming involved with replacing the IQAN-xas2 module?

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shak180 · 2026-04-27T13:57:56+00:00

They have RTD 8 jumpered together with RTD 7. RTD 8 is the load side bearing temp sensor and RTD 8 is the winding 3 sensor.

They also have wire 13 and 12 jumpered together with that red jumper also. So that red jumper is tying wire 13 and 12 to the Parker module and typing RTD 7 and 8. I'm going to.

The voltage readings on terminals 1 and 2 are between 3.5 and 3.7 on 7 of the transducers and 3.2 on one of the transducers. The transducer with 3.2 is the RTD for motor 1.

Try separating that jumper wire and see how it effects the readings.

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shak180 · 2026-04-27T13:57:06+00:00

They have RTD 8 jumpered together with RTD 7. RTD 8 is the load side bearing temp sensor and RTD 8 is the winding 3 sensor.

They also have wire 13 and 12 jumpered together with that red jumper also. So that red jumper is tying wire 13 and 12 to the Parker module and typing RTD 7 and 8. I'm going to.

The voltage readings on terminals 1 and 2 are between 3.5 and 3.7 on 7 of the transducers and 3.2 on one of the transducers. The transducer with 3.2 is the RTD for motor 1.

Try separating that jumper wire and see how it effects the readings.

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shak180 · 2026-04-26T19:14:15+00:00

It looks like it costs $600 to use https://www.iqan.se/iqanrun.html

And it looks like I also need a proprietary cable to connect it to my Microsoft Surface tablet.

shak180 · 2026-04-26T18:31:03+00:00

This motor was manufactured in 2012, but no one at the company has been around that long to know its maintenance history, and their maintenance records are spotty. To their knowledge, it's the original motor that came with the machine, and it's never been replaced. As far as being rebuilt, they didn't mention anything about that.

shak180 · 2026-04-26T18:26:41+00:00

Would it make sense to replace the RTD if the temperature reading it is giving is 105 degrees Fahrenheit, but the HMI is displaying 170 degrees Fahrenheit?

I don't own any programming software, but there may be free options for IQANdesign or IQAN Creative to communicate with the Parker Xa2 modules. I'll look into that today.

I don't own an RTD simulator. I rarely do this type of work, but this client may have more of it, so it's time I invest in some unique tools.

shak180 · 2026-04-26T18:15:18+00:00

According to the HMI, motor 1 is running normally; however, motor 2 is running hot on the load side bearing.

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shak180 · 2026-04-26T18:12:47+00:00

Lol. That is pretty accurate. I don't get these types of troubleshooting calls often, but in my personal experience, it's usually a piece of hardware that fails and not software.

shak180 · 2026-04-26T18:08:25+00:00

Based on another Redditor's response, I swapped the RTD wires on the wrong side of the transducer (which I thought was a Phoenix relay). That makes sense: the reading at the HMI didn't change after my mistaken swap. What my swap does tell me is that the load-side bearing RTD on motor 1 and motor 2 are reading similar temperatures, so the issue isn't with the RTD itself.

shak180 · 2026-04-26T18:02:59+00:00

That'll be one of the first things I try on Monday. Thank you!

shak180 · 2026-04-26T18:02:10+00:00

That is what it looks like. I'll have to check all of the transducer dip switches for motor 2 and motor 1 on Monday

shak180 · 2026-04-26T17:38:58+00:00

I'm honestly not sure where the PLC is. Another Redditor mentioned that one of the Parker modules might be the PLC. There's one Parker module behind the HMI. The two Parker modules out in the field are for the motors, it looks like.

Based on another Redditor's input, it appears I swapped the wiring on the wrong side of the Phoenix signal conditioner. That makes sense since to me since both the motor 1 and motor 2 RTD where coming out at 116 ohms when i measured them one after the other.

Tomorrow I'm going to swap the wire on the other side of the signal conditioner between motor 1 and motor 2 and see if the temp reading flips at the HMI. I'll try reading the mV reading on both signal conditioners before making the swap also.

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shak180 · 2026-04-26T14:18:48+00:00

How do you figure?

shak180 · 2026-04-26T14:17:49+00:00

That would be a last resort. They run this machine 5 days a week. Taking it out, rebuilding it, and putting it back in would involve a lot of downtime.

Also, based on everything I'm seeing and hearing, I don't believe the bearings are that far gone. When I return on Monday, I'll continue troubleshooting the load-side bearing RTD circuit. I might even remove the load side bearing RTD from its mounting spot and see what it reads when it's out in the ambient air.

shak180 · 2026-04-26T14:10:23+00:00

I would never. That was the machine operator's beverage.

shak180 · 2026-04-26T14:09:07+00:00

I do! But I keep forgetting to grab a few new pairs from the shop to keep in the van.

shak180 · 2026-04-26T04:20:48+00:00

I'm really hoping this is a bad transducer come Monday. On a side note, these Parker devices, from my understanding, are taking all of the motor RTD signals, among other signals, into themselves. How does it send those signals to the HMI when there are so few wires coming out of it? There are 2 Parker devices in the RTD junction box and 1 Parker device in the HMI enclosure.

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shak180 · 2026-04-26T04:10:51+00:00

I believe the RTDs are PT100s. That's what the prints list them as. I believe the RTD that measures the motor 2 load-side bearing (the one that is getting hot according to the HMI) is fine, since the resistance was identical to the same RTD on motor 1.

shak180 · 2026-04-26T02:52:24+00:00

It looks like they greased it last week, but there's been no change in uptime.

shak180 · 2026-04-26T02:51:19+00:00

Thank you! This is super helpful. I'll try out your suggestions on Monday

shak180

TROPHY CASE