Maintenance 02.00
13-8 SIEMENS AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
13.2.4 Replacement of fuses and thyristor assemblies on converters of 1500A and
above
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7
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• Undo the M6 hexagonal nut a .
• Swing the fan
s upwards and hold in place with support rail d .
• Remove the brace
f with the attached protective cover by undoing the 2 M6 hexagon-head
screws.
• Remove fuses
g by undoing the 2 hexagon-head screws on each (M10 or M12 depending on
converter model).
• Undo the M10 hexagon-head screw
h and swing thyristor assembly j out towards you.
• Undo assembly locking mechanism (M6 hexagonal nut)
k , then pull out thyristor assembly j
upwards at an angle.
• Install the new components in the reverse order.
Caution: The fuse mounting screws are of different lengths!
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