Southbend SB1038F - Manual (Page 23)

For Machines Mfg. Since 7/09 EVS Toolroom Lathes
-17-
P R E P A R A T I O N
Correcting Out-of-Phase Wiring
This sub-section is only provided for
troubleshooting. If you discover during the test
run that the lathe will not operate, or that the
spindle runs backwards, the lathe may be wired
out of phase. Without the proper test equipment
to determine the phase of power source legs,
wiring machinery to 3-phase power may require
trial-and-error. Correcting this is simply a
matter of reversing the positions where two of
the incoming power source wires are connected.
To correct wiring that is out of phase:
1. Push the stop button, turn the main power
switch to OFF, and disconnect the machine
from power (or shut OFF and lock out the
power source if hardwired).
2. Open the electrical box and disconnect the
L1 and L2 wires shown in Figure 15 on the
"To Power Source" side of the switch.
3. Connect the L1 wire to the terminal where
the L2 wire was connected originally.
4. Connect the L2 wire to the terminal where
the L1 wire was connected originally.
5. Close and latch the electrical box, and
reconnect the machine to the power source.
Test Run
After all preparation steps have been completed,
the machine and its safety features must be
tested to ensure correct operation. If you discover
a problem with the operation of the machine or
its safety components, shut the machine down,
disconnect it from power, and do not operate it
again until you have resolved the problem.
Note: The variable speed on this machine is
controlled by a frequency drive unit constructed
with sensitive electronics. These electronics
can be damaged if power is disconnected during
operation. Therefore, unless the stop button and
brake lose functionality, always properly shut
the machine down before disconnecting it from
the power source.
A Troubleshooting section is provided, starting
on Page 74, to assist you with solutions if a
problem occurs or if the lathe does not function
as described in this section.
If you need additional help after reviewing the
troubleshooting section, or you are not confident
troubleshooting the machine on your own,
contact our tech support at (360) 734-1540.
To test run your machine:
1. Read and follow the safety instructions at
the beginning of the manual, take required
safety precautions, and make sure all
previous preparation steps discussed in this
manual have been followed and completed.
2. Clear away all tools and objects used during
assembly, lubrication, and preparation.
3. DISCONNECT LATHE FROM POWER!
4. Make sure that the chuck and jaws, if
installed, are secure (refer to Chuck and
Faceplate Mounting on Page 27).
Note: If a chuck is not installed on the lathe, you
do not need to install one for this test.
5. Turn the pump switch (Figure 17) to the
OFF position, and point the fluid nozzle into
the chip drawer.
Due to the complexity required for planning,
bending, and installing the conduit necessary for
a hardwire setup, this type of setup can only be
performed by an experienced electrician.
For Electrician: Connect the incoming power
wires as shown in Figure 15.
Power Source
Locking
Disconnect Switch Machine
Conduit Conduit
Figure 16. Typical hardwire setup with a locking
disconnect switch.