I am using a 5V borescope analog camera (Sony CCD, PAL/NTSC) for visualization purposes. This camera has a 20 meter 4 core wire, which transmits power and video signal to and from the camera. Along with this, I am using a servo motor (Siemens V90, takes 3 phase 415V AC) which moves pulls and pushes the 20 m wire (in turn moves the camera inside a pipe).
Problem: The image fed by the camera has lot of noise. I could make out that, the noise disappears when the servo motor and driver is switched off. Since the motor takes 415V and the camera is operating at 5 V DC, there is a signal interference.
Can you suggest any possible solutions to avoid the noise in the image?
Note: I have added the wiring drawing of the camera and the TV that displays the live video from the camera. The green circle is the 4 core wire I m using (one unused wire). Please let me know if more information is required about the servo drive/motor and camera.
The below image shows the noise appearing in the screen