Power Connection - Grizzly G0793 Owner's Manual

Power Connection

Before the machine can be connected to the
power source, an electrical circuit and connec-
tion device must be prepared per the POWER
SUPPLY section in this manual; and all previ-
ous setup instructions in this manual must be
complete to ensure that the machine has been
assembled and installed properly.
Electrocution, fire, shock,
or
may occur if machine is
not properly grounded
and connected to power
supply.
Note About Extension Cords: Using an incor-
rectly sized extension cord may decrease the life
of electrical components on your machine. If you
must use an extension cord, refer to Extension
Cords on Page 11 for more information.
To connect power cord to drillpress:
1.
Press EMERGENCY stop button on control
panel, turn master power switch OFF, then
remove electrical panel cover, as shown in
Figure 9.
2.
Thread power cord through strain relief shown
in Figure 9.
Figure 9. Electrical box with panel cover
removed.
Model G0793 (Mfd. Since 02/15)
equipment damage
Incoming Power
Strain Relief
KM1 Contactor
Siemens 3TB41 24V
14NO 22NC 32NC
11
2T1 4T2 6T3
3. Connect ground wire to terminal on ground-
ing plate. Then connect incoming hot wires to
W1
L1, L2, and L3 terminals (see Figure 10).
V1
U1
Note About Phase Converters: If using a
phase converter to supply power, only con-
nect the manufactured leg or "wild wire" to the
"L2" terminal. The L2 line can handle power
fluctuations because it bypasses sensitive
electrical components and is wired directly to
the motor.
PE
Ground Wire
Connected
PE
For phase
converter wild
wire (if used)
Incoming
Power Cord
Figure 10. Incoming ground and hot wires
connected.
4.
Make sure wires have enough slack between
strain relief and terminal connections so they
are not pulled tight or stretched, then tighten
strain relief to secure cord.
Note: The strain relief must be tightened
against the outer jacket of the cord. Avoid
over-tightening the strain relief or it may
crush the cord and cause a short.
5. Test strain relief to ensure it is properly tight-
ened by pulling cord from outside box with
light-to-moderate force. When strain relief is
properly tightened, cord will not move inside
cabinet.
6. Install NEMA 15-15 plug on other end of
power cord per plug manufacturer's instruc-
tions.
7. Re-install main electrical panel cover.
KM2 Contactor
Siemens 3TB41 24V
44NO 14NO 22NC 32NC
2T1 4T2 6T3
9
A2
W1
V1
U1
0
L1 L2 L3 U1 V1
L1 L2 L3 U1 V1
L1 L2 L3 U1 V1
PE PE
Hot Wires
Connected
KA1
Siemen
14NO
44NO
U2
7
A2
0
U2 V2 W2
W1
U2 V2 W2
W1
U2 V2 W2
W1
To
Work La
-17-