Mounting 
  5.5 Mounting with external ring light 
SIMATIC MV500 
Operating Instructions, 05/2019, C79000-G8976-C494-02 
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5.5  Mounting with external ring light 
If a lot of light is required for the applications, you can mount and connect an external ring 
light. The external ring light is also used, for example, when the lighting is not parallel to the 
viewing direction with strongly reflecting objects. 
 
External ring light MV500 
External ring light holder 
Protective lens barrel (∅ 65) 
Figure 5-7  Setup of SIMATIC MV500 optical reader with external ring light 
Proceed as follows to mount the SIMATIC MV540 optical reader with an external ring light: 
1.  Remove the protective foil from the reader. 
2.  When using an E-focus lens: Insert the straight connector of the lens cable into the 
interface of the reader (a). 
3.  Screw the desired lens into the lens mount of the reader. 
Ensure the correct alignment of the lens so that the interface is close to the 
cutout/interface (a). If needed, unscrew the lens slightly. If needed, align the lens using 
the knurled nut/spring/counter ring. 
4.  When using an E-focus lens: Use the lens cable to connect the E-focus lens to the 
reader. 
Insert the angled connector of the lens cable into the interface of the lens and the straight 
connector into the interface of the camera. Ensure that the cable does not become 
twisted.