ElmoMC ExtrIQ Digital Servo Drives-Eagle User Manual
Page 30
Eagle Installation Guide
Installation
MAN-EAGIG (Ver. 1.902)
30
3.4.2.2.d
Operation with a Non-Isolated DC Power Supply by Auto Transformer
Figure 9: Non-Isolated DC Power Supply by Auto Transformer
The Power Supply is directly connected to the AC line through an Autotransformer.
The network PE must not be connected to the Return of the Power Supply.
Warning:
Connecting the PE to the VN- with a non- isolated power supply will cause
damage to the system (any component that is connected to the system might
be damaged).
Notes for connecting the DC power supply:
•
Be aware: The Drum can operate from either an:
isolated DC power supply
or
non-isolated DC power supply
•
For best immunity, it is highly recommended to use twisted cables for the DC power supply
cable. A 3-wire shielded cable should be used. The gauge is determined by the actual current
consumption of the motor.
•
Connect both ends of the cable shield to the closest ground connection, one end near the
power supply and the other end to the PE terminal on the Drum’s heat sink.
•
To close the power supply cable into the drive, use the barrel connector, M6 spring washer and
M6 nut (in the drive). The required torque is 3 to4 Nm.
•
To close the PE wire into the drive, use the barrel connector, M5 flat washer, M5 spring washer
and M5 screw to the heat sink. The required torque is 3 to 4 Nm.