-- 2 0 --
dia3d1ea
3. Follow the instructions below for the conversion of L AE 1250/1600:
S Dismount the cable stem, excluding the cables 034 and 035 (for the connection
to the control transformer).
S Cut off the connection to the synchronising transformers (cables marked 001,
002, 003) in the cable stem.
S Dismount all electronics boards and their fittings.
S Dismount the control panel.
S Remove the fuse holder K21.2 fitted above the control transformer to the right.
The lower fuse (K21.2 = fuse for 42 V AC from the control transformer K9) is
replaced by an automatic fuse on the new control panel.
S Remove the multi--pole contact devices on the bottom plate and cover the holes
by way of two plastic plugs from the kit.
S Remove the signs (a sticker and a screwed sign marked 42 V) from the bottom
plate.
S Dismount the terminal block on the control transformer.
S Dismount the shunt (1500 A, 60 mV). N.B. Only for LAE 1600
S Cover the contactor and the control transformer before drilling new mounting
holes.
S Drill the holes according to the drilling diagram for the attachment of
-- the electronics board (AP1)
-- the contactor (KM2)
-- the discharging board with the 12--pole contact device (XS4).
S Fit a new (AP1) circuit board with box on the plate, using the insulating washers
and self --tapping screws which form part of the conversion kit.
S Connect the discharge capacitor to earth.
S Set the two DIP switches (SW1 and SW2) on the board according to the
instructions in the LAF manual.
S Fit the 12--pole contact (XS4) and the discharging board on the medium plate
and connect the discharge capacitor to earth.
S Connect a new cable stem according to the connection diagram.
S Re--use the conductors 034 and 035 for the connection to the control
transformer (TC1).
S Connect ( by soldering) the conductors 001, 002 and 003 in the cable stem to the
three synchronising transformers (TC2).
S Mount the cables for the emergency stop on the control panel. Then connect the
control panel to the cable stem.
S Remove (cut off) the conductor 077 between the board K45.3 and the collector
rail.
S Only remount the RC filter fitted in the old power source.
S Remove the old connection diagram on the inside of the cover plate.
S Mount the shunt (2000 A, 60 mV). N.B. Only for LAE 1600
GB
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