Parker Hannifin 88-020292-01 A manual Lead Motor Labeling the Leads

Scenario #2 — The resistance measurement to the second of the three motor leads measures 50% of the resistance measurement to the third of the three motor leads. Label the second motor lead A CENTER TAP (this is the center tap lead for Phase A of the motor). Label the third motor lead A–. Label the motor lead connected to the ohmmeter A+.

7.Repeat the procedure as outlined in step 6 for the three leads labeled B (B CENTER TAP is the center tap lead for Phase B of the motor).

8.Proceed to the Terminal Connections section below.

8-LEAD MOTOR

Because of the complexity involved in phasing an 8-lead motor, you must refer to the manufacturer’s motor specification document. Using the manufacturer’s specifications, label the motor leads as shown in the next drawing.

Phase A Windings

1

2

3

4

PM

1 2 3 4

Phase B Windings

8-Lead Motor – Labeling the Leads

You can configure the 8-lead motor in series or parallel.

Series Configuration Use the following procedure for series configura- tions.

1.Connect A2 & A3 together and relabel this common point A CENTER TAP.

2.Connect B2 & B3 together and relabel this common point B CENTER TAP.

3.Relabel the A1 lead A+.

4.Relabel the A4 lead A–.

5.Relabel the B1 lead B+.

6.Relabel the B4 lead B–.

7.Proceed to the Terminal Connections section below.

Parallel Configuration Use the following procedure for parallel configu- rations.

1.Connect motor leads A1 & A3 together and relabel this common point A+.

2.Connect motor leads A2 & A4 together and relabel this common point A–.

3.Connect motor leads B1 & B3 together and relabel this common point B+.

4.Connect motor leads B2 & B4 together and relabel this common point B–.

5.Proceed to the Terminal Connections section below.

E-AC Drive Hardware Installation Guide Appendix A – Non-Compumotor Motors 37