Emerson 400501-05 Power Supply Requirements, AC Supplies not Requiring Transformers

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.

10