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3-2 Receiving & Installation MN1854
Electrical InstallationAll interconnection wires between the driver, AC power source, motor, host
driver and any operator interface stations should be in metal conduits. Use listed
closed loop connectors that are of appropriate size for wire gauge being used.
Connectors are to be installed using crimp tool specified by the manufacturer of
the connector. Only class 1 wiring should be used.
System Grounding Baldor drivers are designed to be powered from standard single phase lines
that are electrically symmetrical with respect to ground. System grounding is an
important step in the overall installation to prevent problems. The recommended
grounding method is shown in Figure 3-1 for UL compliant systems (Figure 3-2 for
CE compliant systems).
Figure 3-1 Recommended System Grounding for UL
L
AC Main
Supply
Safety
Ground
Driven Earth
Ground Rod
(Plant Ground)
L
N
Earth
N
Route all 3 wires L, N, and Earth
(Ground) together in conduit or
cable.
Note:
Wiring shown for clarity of grounding
method only. Not representative of
actual terminal block location.
Microstepper Driver
Ground per NEC and Local codes.
Note: Use shielded cable for driver signal wires. Route driver signal wires in
conduit. These wires must be kept separate from power and motor wires.
Linear
Motor
GND
B+A– B–A+
Figure 3-2 Recommended System Grounding (1 phase) for CE
Note:
Wiring shown for clarity of
grounding method only. Not
representative of actual
terminal block location.
B+A– B–
Route all power
wires together in
conduit or cable.
Note: Use shielded cable for driver signal wires. Route driver signal wires in
conduit. These wires must be kept separate from power and motor wires.
Enclosure Backplane (see Section 8)
Motor
GND
All shields
LN
Linear
Motor
Microstepper Driver
AC Main
Supply
Safety
Ground
Driven Earth
Ground Rod
(Plant Ground)
N
Earth
A+
L
GND