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Microstepping MForce PowerDrive Manual Revision R040507
The IOS motor is available in the following frames:
Frame Size IMS PN
23 Frame ...................................................................................................................M3-2220-IOS
34 Frame ...................................................................................................................M3-3424-IOS
Connecting the Motor
The motor leads are connected to the following connector pins:
Phase Connector: Pin
Phase A ................................................................................................................................... P4: 1
Phase A ................................................................................................................................... P4: 2
Phase B ................................................................................................................................... P4: 3
Phase B ................................................................................................................................... P4: 4
8 Lead Motors
8 lead motors offer a high degree of flexibility to the system designer in that they may be connected in
series or parallel, thus satisfying a wide range of applications.
Series Connection
A series motor configuration would typically be used in applications where a higher torque at
lower speeds is required. Because this configuration has the most inductance, the performance
will start to degrade at higher speeds. Use the per phase (or unipolar) current rating as the peak
output current, or multiply the bipolar current rating by 1.4 to determine the peak output current.
Parallel Connection
An 8 lead motor in a parallel configuration offers a more stable, but lower torque at lower speeds.
But because of the lower inductance, there will be higher torque at higher speeds. Multiply the
per phase (or unipolar) current rating by 1.96, or the bipolar current rating by 1.4, to determine
the peak output current.
Figure 2.3.2: 8 Lead Motor Series Connections
1
3 4
2
Splice
Splice
P4
PHASE A
PHASE A
BPHASE
PHASE B
Figure 2.3.3: 8 Lead Motor Parallel Connections
1
3 4
2
P4
PHASE A
PHASE A
BPHASE
PHASE B