Baldor MDH1A05TB-RC23, Installation Manual

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3-10 Basic Installation MN1901
3.4.2 Three-phase connection to package sizes E, G, H
Location Connector X1A
(Mating connector: Phoenix POWER COMBICON PC4/..-ST- 7.62)
Part number MDH 2 A 15 ... MDH 4 A...
Nominal input
voltage
230VAC, 3 Φ line to line 230-460VAC, 3 Φ line to line
Range 75-253VAC 75-528VAC
Tightening torque for terminal block connections is 0.5-0.6Nm (4.4-5.3 lb-in). The threaded
hole in the top of the enclosure is for protective earth/ground connections. The threaded hole
in the bottom of the enclosure (if present) may be used as an additional functional
earth/ground connection for signals on connector X3. It may also be used to attach strain relief
clamps. The holes are threaded for M4 bolts no longer than 12mm (0.47 in) in length. Longer
bolts may short circuit the electrical components inside the MintDrive
II
.
AC
Supply
Line (L1)
Route L1, L2, L3 and
earth/ground together
in conduit or cable
Circuit breaker or fuses.
See section 3.4.4
AC filter.
See section
3.4.5
Line (L2)
Line (L3)
STAR POINT
Incoming safety
earth/ground (PE)
Isolating switch
* If filter has no
output
earth/ground
terminal, earth
wire may be
connected
directly to star
point.
*
MDH 4 A... shown
for illustration
purposes
If AC power wires
are shielded,
earth/ground
outer shield using
360º clamps
connected to
backplane.
Figure 3 - Earthing/grounding for three-phase installations
WARNING : Drives with part numbers MDH 2 A15... have two additional terminals
on the X1 connector labeled Vcc+ and Vcc-. The full DC bus output
voltage is present on the these terminals so do not make any
connection to them.
Note: For CE compliance, a three-phase AC filter must be connected between the AC
power supply and the MintDrive
II
. If local codes do not specify different
regulations, use at least the same gauge wire for earth/ground as is used for L
and N.