Motor Wiring; Connecting The Motor; Lead Motors; Figure 2.2.2: 8 Lead Motor Series Connections - IMS Mforce micro drive Reference

Motor Wiring

Connecting the Motor

2-10
As with the power supply wiring, motor wiring should be run separately from logic wiring to minimize noise coupled
onto the logic signals. Motor cabling exceeding 1' in length should be shielded twisted pairs to reduce the transmission of
EMI (Electromagnetic Interference) which can lead to rough motor operation and poor system performance. Below are
listed the recommended motor cables:
≤ 5 feet ................................................................................... Belden Part# 9402 or equivalent 20 Gauge
≥ 5 feet ................................................................................... Belden Part# 9368 or equivalent 18 Gauge
When using a bipolar motor, the motor must be within 100 feet of the drive.
The motor leads are connected to the following connector pins:
Phase
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 re-
quired. 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.
P3
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.
Dual Twisted Pair Shielded (Separate Shields)
1 2 3 4
PHASE B
PHASE B
PHASE A
PHASE A

Figure 2.2.2: 8 Lead Motor Series Connections

Motion Control MForce MicroDrive Hardware Manual Revision R112706
Connector: Pin
Splice
Splice