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XYZ Machine Tools Ltd
XYZ Bed Mill Safety, Installation, Maintenance, Service & Parts List Manual
Figure 8 - Levelling Screws
2.8
Electrical Connection
The SMX 2500, 3500, 4000 & 5000 require a 400 volts, 3-phase, 50/60Hz supply plus an Earth
connection. No Neutral connection is required.
The incoming supply is wired to the machine through the electric cabinet located on the back of the
machine. The cable enters the cabinet through a compression gland fitted into the hole in the top of the
cabinet. The wires are connected to the incoming isolator. The main ground wire should be fastened to
the isolator mounting bracket with the screw provided.
The earth connection to the machine must be a minimum of 10mm
2
(copper) due to high earth leakage
current (≤200mA).
DANGER!
The 400 VAC supply should only be wired by a qualified electrician.
2.9
Air Connection
The machines have a PCL/series 19, quick release air connection on the side of the electrical cabinet for
the power drawbar (see section 5).
The air preparation unit is fitted with a pressure regulator, factory set to 70 psi, water trap and lubricator.
2.10
Mounting the Display Pendant
The ProtoTRAK SMX display pendant mounts to the pendant arm with four 1/4-20 x ¾ SHCS. There is a
locating screw on the pendant arm to help align the pendant with the mounting holes.
CAUTION!
The locating screw in the arm is used for positioning. Keep a hold of the pendant until the
screws are fastened.
If the pendant arm rotates too freely, remove the painted cap on the bracket attached to the column and
tighten the hex nut to tension the hinge. Replace the cap.
2.11
Cable Interconnections
All cable interconnections are made at the factory. See Figure 11 for a complete illustration of cable
interconnections for all components. If electronic handwheels are fitted, these plug into the two, 15 pin
connectors near the top.
Make sure there is sufficient slack in the cables for when the pendant is rotated about the pendant arm.
The worst case is when the pendant is all the way forward toward the operator. The following drawing
illustrates pendant connectors.
Make sure there is a hardware (option) key plugged into the parallel port of the pendant. This key
activates any converters or options ordered. The part # for this key is 22648. The key must be
programmed according to the type of machine it is on and the options ordered.
The Machine ID port must have this key or the machine will not run.
CAUTION!
Make sure the main power is turned off on the back of the electrical cabinet before plugging
in the cables.