Emerson Epsilon Eb Digital Servo Drive Server User Manual


 
10
Epsilon Eb Digital Servo Drive Installation Manual
Power Supply Requirements
The examples below show AC power connections for single phase and three phase drives.
These examples are shown for reference only. Local electrical codes should be consulted
before installation.
The Protective Earth (PE) wire connection is mandatory for human safety and proper
operation. This connection must not be fused or interrupted by any means. Failure to
follow proper PE wiring can cause death or serious injury.
Epsilon Only
The Eb-202, Eb-203 and Eb-205 drives require 42 to 264 VAC single-phase power. An
Epsilon drive can be connected to any pair of power phases on a 1 Ø or 3 Ø power source
that is grounded as shown in the following diagrams.
Epsilon Only
If using an APS Logic Power input and the Low DC Bus fault is disabled, minimum
supply voltage to an Epsilon can be reduced to 15 VAC on the AC inputs or 24 VDC on
the Bus +/- connections.
Note
The maximum voltage applied to the drive terminals must not exceed 264 VAC phase to
phase and phase to PE ground. This can be accomplished by referencing the AC supply
to earth ground.
Do not connect or disconnect the AC power by inserting or removing the AC power
connector. Using the connector in this manner, even once, will damage the connector,
making it unusable.
AC Supplies NOT Requiring Transformers
If the distribution transformer is configured as shown in the figures below, the AC power
supply can be connected directly to the amplifier terminals.