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G1  Introduction to AC500  1-65  AC500 / Issued: 07.2006 
 
 Important: Horizontal mounting is highly recommended. Vertical mounting is possible, 
however, derating consideration should be made to avoid problems with poor air circulation and the 
potential for excessive temperatures (see also the AC500 system data, operating and ambient 
conditions, for reduction of ambient temperature). 
 
 Note: By vertical mounting, always place an end-stop terminal block (e.g. type BADL, P/N: 
1SNA399903R0200) at the bottom and on the top of the modules to properly secure the modules. 
By high vibration applications and horizontal mounting, we also recommend to place end-stop 
terminals at the right and left side of the device to properly secure the modules, e.g. type BADL, 
P/N: 1SNA399903R0200. 
Mounting the System 
 ATTENTION 
During panel or DIN rail mounting of all devices, be sure that all debris (metal 
chips, wire strands, etc.) is kept from falling into the controller. Debris that falls 
into the controller could cause damage while the controller is energized. 
Mounting and Demounting of the Terminal Unit and Electronic Module 
Mounting on DIN rail 
Step 1: Install the 7.5 mm or 15 mm DIN Rail  
Step 2: Snap the FBP-Terminal Unit (TU505 or TU506)  
 
Figure: Mounting of the FBP Terminal Unit (TU505 or TU506) 
The FBP Terminal Unit will be placed on top of the DIN Rail and then snapped on the bottom. Follow the 
reverse order to disassembly.