MI 3099
Demonstration board
1.3 Meaning of front panel warnings
Take care. Demonstration board operates only at
declared mains voltages (according to the description
under the mains socket) and right connected mains
terminals!
Use only outlets with grounded protection terminal!
There is a protection circuit inside the board. The
board will not turn on:
−
if PE terminal is not grounded
−
if N terminal is not connected
−
if phase voltage is not applied to the boards L
terminal. Swap the mains plug in this case.
−
if there is a voltage difference higher than 30V
between N and PE terminals.
1-phase connection: The board will turn on if mains
plug is inserted correctly. Otherwise swap L and N
terminals!
Use the test outlets on front panel only for
demonstration purposes!
Do not connect any other equipment/loads, otherwise
the board may be damaged and the operator exposed
to hazardous voltage!
Do not connect any external voltage except voltages
generated by measuring instruments – possible
hazardous voltage on accessible parts of board.
PE terminals collectors and N terminals collectors are
NOT connected to mains PE terminal but to neutral
line.
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