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Mechanical Installation
Electrical Installation
System Grounding
Route all 4 wires L1, L2, L3 and Earth
(Ground) together in conduit or cable.
AC Main
Supply
Safety
Four Wire
Ground
Driven Earth
Ground Rod
(Plant Ground)
Route all 4 wires L1, L2, L3 and Earth
(Ground) together in conduit or cable.
AC Main
Supply
Safety
Four Wire
Ground
Driven Earth
Ground Rod
(Plant Ground)
All shields
Note:
Use shielded cable for control signal wires. Route control signal wires in
conduit. These wires must be kept separate from power and motor wires.
2-2 Installation
The BPS must be securely fastened to the mounting surface by the BPS mounting holes.
The location of the mounting holes is shown in Section 3 of this manual.
All interconnection wires between the BPS, control, AC power source, motor, host control
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.
The BPS is designed to be powered from standard three 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 2-1 and 2-2.
Figure 2-1 Recommended System Grounding for UL
L1
L2
L3
Earth
"Wye"
Figure 2-2 Recommended System Grounding for CE
L1
L2
L3
Earth
"Wye"
Enclosure Backplane
BPS
DBSC
Control
L1
L2 L3
U
V
W
BPS
DBSC
Control
L1
L2 L3
U
V
W
Note:
Wiring shown for clarity of grounding method
only. Not representative of actual terminal
block location.
Route all 4 wires U, V, W and Motor Ground together
in conduit or cable. Connect wires (including motor
ground) inside the motor terminal box.
Ground per NEC
and Local codes.
Note:
Wiring shown for clarity of grounding method
only. Not representative of actual terminal
block location.
Route all 4 wires U, V, W and Motor Ground together
in conduit or cable. Connect wires (including motor
ground) inside the motor terminal box.
MN1221
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