Gold Solo Double Twitter Installation Guide
MAN-G-SOLTWIB_160 (Ver. 1.005)
|
Main, Control, and Motor Power|
www.elmomc.com
32
Table of Contents
8.1.4.3.
Dual Power Supply (PN
G-SOLTWIDXXX/YYYEES
D
)
Whenever dual power supply is selected by its part number, a separate supply for the Logic is
required. Both the Power and Logic supplies are required to be isolated from the mains:
•
A battery or main DC power source rectified from the mains, according to specification
•
A control supply for the logic (VL+, VL-)
The following figure describes an ordinary power supply for Servo drives with sufficient internal
capacitance and shunt regulator to manage power flow in both directions to-and-from the motor.
Note:
The PR, COMRET, and VL- are connected internally in the Gold Solo Double Twitter.
Figure 12: Separate VP and VL Power Supplies Connection Diagram –Highly Recommended
The (+) of the control power supply is connected to the VL+ terminal, while the (-) of the control
power supply is connected directly to the (-) of the DC bus power supply. This connection avoids
high current ground loops due to poor wiring (Figure 12).
