Systems; Ac Board - Stratasys FORTUS 360mc Service Manual

4.
Adjustments - such as Z Zero and setting belt tension - should be accomplished after
thermal expansion has completed. Oven temperatures should be allowed to stabilize for
four hours.

Systems

AC Board

Purpose
Distributes AC power
Components, Circuits, and Operation
1.
AC Board/MIO Interface.
• HVDC 1 and 2 for head heaters.
• Safety circuit connections.
• Communication connections.
• Oven heat control.
2.
Safety circuit
• AC board generates 24 volts DC for the safety circuit.
• 24 volts is fused at F6 on the AC board.
• The safety circuit leaves and returns on connection JP18.
3.
Oven Heaters Circuit
• Three Solid State relays control the duty cycle of the heaters.
• Powered by 230 volts.
• Each phase of incoming power powers one set of heaters.
• The MIO PIC commands the duty cycle to the SSRs.
• The computer relays the duty cycle to the AC PIC.
4.
Head heaters Circuit
A.
B.
C.
D.
E.
F.
FORTUS 360mc/400mc Service Manual
The AC board distributes 230 volts AC to the transformer.
The transformer provides 120 volts AC. (This voltage depends on
how high or low the incoming AC voltage is at the transformer.)
The AC board then rectifies the 120 volts AC to 120 volts DC.
This is then distributed to the head through the MIO board.
Power goes to the transformer and returns on connection JP4.
Power goes to the head on connection JP23.
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