Doepfer MTC64 Power Board - Manual

MTC64 Power Board
Mains Switches Expansion for MTC64 Main Board
Installation and User's Manual
© 2005 by Doepfer Musikelektronik
Important Notes
• DANGER TO LIFE !
• Dangerous mains voltages (115V AC / 230V AC) appear at the pc board,
electronic parts and wires during operation.
• Because of electrical safety installation, wiring and operation of the MTC
power board has to be carried out by qualified personnel only that is
familiar with all safety rules valid in the country where the MTC power board
is installed.
• Not qualified personell is not allowed to install and run the MTC power
board !
• If you are not sure if your knowledge is sufficient to install and run the MTC
power board do not install and operate the device.
• The user has to read the installation manual carefully and follow all
instructions in the manual meticulously !
• The complete construction has to be mounted into an isolating case before
the mains voltage is applied. It has to be impossible to touch any part that
may lead mains voltage (including cables, electronic parts, fuses, fuse
holders, connectors, pcb tracks, wires, cables and so on).
• Operation of the MTC power board outside such a housing is strictly
forbidden!
• In case that a metal housing is used it has to be connected to earth/shield.
The cross section for the earth/shield cable has to be more than for the
mains cables. In Germany only yellow/green cables are allowed for
earth/shield wiring. This color is not allowed to be used for any other
connection.
• Connecting and wiring the boards has to be carried out without mains
voltage applied to the board. Therefore the board has to be disconnected
completely from mains during any work at the board (even for fuse
replacement !).
• For all main connections and wiring (i.e. all connections to mains and to the
loads) connectors and cables have to be used that are suitable and licenced
for the voltage (115/230V AC) and current in question.
• The single fuses (i.e. the fuses located at the MTC power board for each
output) are equipped with 1A from the factory and must not be replaced by
higher values or bridged (exception: if only 8 or less outputs are used the
value may be increased to 2A max.).
• For the mains input a fuse (fast blow) has to be installed that is equal to the
sum of all loads that are driven (depends even upon the number of outputs
that are actually wired). The maximum allowed value for this fuse is 16A !
• Because of the heat emmission of the sold state relays the complete
construction has to be cooled to avoid overheating. Possibly a housing with
ventilation slits or an additional fan has to be used.
• The complete construction must never be operated outdoors but only in
dry, closed rooms. Never use it in a humid or wet environment nor near
inflammables.