PowerFlex 755 Install Manual.pdf
PowerFlex 755 Install Manual.pdf
PowerFlex 755 Install Manual.pdf
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Common Bus Power Wiring<br />
Power Terminal Block Designations<br />
Terminal Description Notes<br />
+DC DC Bus (+) DC Input Power or Dynamic Brake Chopper<br />
-DC DC Bus (–) DC Input Power or Dynamic Brake Chopper<br />
BR1 DC Brake (+) Dynamic Brake Resistor Connection (+)<br />
BR2 DC Brake (–) Dynamic Brake Resistor Connection (–)<br />
U U (T1) Motor Connections (1)<br />
V V (T2)<br />
W W (T3)<br />
R R (L1) AC Line Input Power<br />
S S (L2)<br />
T T (L3)<br />
PE / PE Ground Terminating point to chassis ground for incoming AC line<br />
and motor shield.<br />
(1) Important: Motors with NEMA MG1 Part 31.40.4.2 inverter grade insulation systems are recommended. If you<br />
intend to connect a motor that is not rated inverter grade, refer to Wiring and Grounding Guidelines for Pulse<br />
Width Modulated (PWM) AC Drives, publication DRIVES-IN001 for recommendations.<br />
Figure 27 Common Bus Terminal Block Location and Termination Points<br />
➌<br />
➋<br />
➊<br />
Frame 5<br />
Table 14 Frame 5 Common Bus<br />
No. Name Description<br />
➊ Power Terminal Connections +DC, -DC, U/T1, V/T2, W/T3<br />
➋ PE Grounding Studs Terminating point to chassis ground for incoming DC line and<br />
motor shields.<br />
➌ PE-B CMC Jumper Screw<br />
➍ Optional NEMA/UL Type 1 Terminating point to chassis ground for incoming AC line,<br />
Conduit Box<br />
motor shields, and control wire shields.<br />
➎ Optional EMC Plate Terminating point to chassis ground for incoming AC line,<br />
motor shields, and control wire shields.<br />
<strong>PowerFlex</strong> 750-Series <strong>Install</strong>ation Instructions – Publication 750-IN001C-EN-P – September 2009<br />
➋<br />
➍<br />
➎<br />
45
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