Stoll CMS 502 - Page 55

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Assembly and setting up
7
Assembling machine
3. Open the plug (2) and connect to the mains supply (3).
4. Make sure that the operational mains supply is loaded evenly (mains
symmetry). You will find the connection variants (A, B, C) in the above
table.
5. The terminal for the protective conductor "PE" must be connected.
6. Close the plug (2) and connect it to the main switch.
Mains supply (3) Example for mains symmetry
Connection variant
Plug (2) A B C
L1 L1 L2 L3
L2 L2 L3 L1
L3 * L3 ** L1 ** L2 **
N N ** N ** N **
PE PE PE PE
* L3 is not used internally in the machine. Therefore, the phases in the plug (2)
must be distributed evenly on L1 and L2.
** if available
Potential equalization missing!
Serious faults or disturbances can be caused in the
machine and the electronic circuit if the terminal (PE)
is not connected.
-> Always connect terminal .