Are the control boxes compatible with both the UR3e and UR5e robots?

Hello, I am a user of both the UR3e and UR5e robots.
I have heard that alternating the use of the control box between the two robots may cause power issues. (I changed the SD Card)
This information was given to me by a distributor, but I have not been able to find any official documentation on this matter. Does anyone have any knowledge about this?

Hello,
This is an image of the electrical drawing found in the service manual :

We also show it in the certified service and troubleshooting (light) trainings. Between UR5e,UR10e and UR16e it’s possible but never with the UR3e because the PSU it’s kind of different.

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I believe they are calibrated for a specific robot, even if they are the same device.
On the earlier CB3’s you could swap the USB stick over which was specific for a robot, but the URxe doesn’t have this feature.

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