Baldor MintDrive, Installation Manual

Page: 24 / 155

11
2.3.1 Grounding
Single phase units
AC Mains
Supply
Safety Ground
Driven Earth
Ground Rod
(Plant Ground)
L
N
Earth
Route all 3 wires L, N, and
Earth (Ground) together in
conduit or cable. Power
wires must be kept separate
from control signal wires.
MintDrive
Ground as per
NEC and local codes.
V L N U W
Note: Wiring shown for clarity of
grounding method only.
Not representative of actual
terminal block location.
Circuit breaker
or fuses.
See section
2.3.3.
Figure 2 - Recommended single phase system grounding
Note: For CE compliance, a 3-phase mains filter must be connected between the mains supply
and the MintDrive. The MintDrive and motor earths should be connected to the enclosure
backplane. (The enclosure backplane should be connected to the earth at the mains source.
There should be a separate connection from the earth at the mains source to the plant
ground rod).
Three phase units
Route wires L1, L2, L3 and
Earth (Ground) together in
conduit or cable. Power wires
must be kept separate from
control signal wires.
MintDrive
Ground as per
NEC and local codes.
V L1 L2 U W
Note: Wiring shown for clarity of
grounding method only.
Not representative of actual
terminal block location.
AC Mains
Supply
Safety
Ground
Driven Earth
Ground Rod
(Plant Ground)
Four Wire
“Wye”
L1
L2
L3
Earth
L3
Circuit breaker
or fuses.
See section
2.3.3.
Figure 3 - Recommended 3-phase system grounding
Note: For CE compliance, a 3-phase mains filter must be connected between the mains supply
and the MintDrive. The MintDrive and motor earths should be connected to the enclosure
backplane. (The enclosure backplane should be connected to the earth at the mains source.
There should be a separate connection from the earth at the mains source to the plant
ground rod).