Electric Company Computer Drive User Manual

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3-12 Basic Installation MN1942
3.4.2 Single-phase or three-phase power connections
Location Connector X1 (Mating connector: Phoenix COMBICON
MSTB 2,5HC/11-ST-5,08)
Nominal input voltage 1 15VAC or 230VAC, 1Φ or 3Φ line to line
Minimum input volt age 105V AC, 1Φ or 3Φ linetoline(seeNote*)
Maximum input voltage 250VAC, 1Φ or 3Φ line to line
Note: * The MicroFlex e100 will operate at lower input voltages, although performance
could be impaired. The drive will trip if the DC-bus voltage falls below 50V or 60% of
the no-load voltage, whichever occurs first.
For three phase supplies, connect supply to L1, L2 and L3 as shown in Figure 3. For single phase
supplies, connect the supply and neutral to any two line inputs, for example L1 and L2.
For CE compliance, an AC filter must be connected between the AC power supply and the
MicroFlex e100. If local codes do not specify different regulations, use at least the same gauge
wire for earth/ground as is used for L1, L2 and L3.
Tightening torque for terminal block connections is 0.5-0.6Nm (4.4-5.3 lb-in). The threaded hole
in the top and bottom of the case may be used as an additional functional earth/ground
connection for signals on connector X3. They may also be used to attach shield or strain relief
clamps. The holes are threaded for M4 bolts no longer than 11mm (0.43 in) in length.
To earth/ground outer shiel d,
use 360° clamps connected
to enclos ure backplane
AC
Supply
Line (L1)
Route L1, L2, L3 and
earth/ground together
in conduit or cabl e
Circuit breaker or fuses.
See sec tion 3.4.4
AC filter.
See section
3.4.7
Line (L2)
Line (L3)
STAR POINT
Incoming s afety
earth/ground (PE)
Isolating switch
Connect
earth/ground
to protec tive
earth on top of
drive
Figure 3 - Single or three-phase power connections