Emerson 400518-01 installation manual Low Power Connections, DC Logic Power Supply Wiring

Safety Information Product Overview

Installation

Diagnostics

Options and Accessories

Specification

Step 4: Low Power Connections

DC Logic Power Supply Wiring

The Epsilon drive requires a user supplied logic power supply, 24 Vdc ±10%, to power the internal logic of the drive. Use the table below to determine the current requirements of the application. Users should consider keeping logic power energized at all times because it helps prevent condensation and maintains position information in the drive.

Logic Power Supply Specification

Voltage Range	Model	Current
	EP-P	050 A without sync encoder
24 Vdc ±10%		0.57 A with 250 mA sync encoder
(21.6 Vdc to 26.4 Vdc)
	All EP Models except EP-P	0.31 A without sync encoder
		0.38 A with 250 mA sync encoder

Do not wire AC line into the logic power supply input. Doing so will damage the drive.

Front View

			L1
			L2
			PE
		motor	R
	R		T
	L1		S
	L2
	PE
motor T
	S
logic	+	logic	+
	_
			_

Tighten screws

to 5 in-lb.

EP204-I00-0000 9606XX-XX A1 SN 0610E014

Fuse, if required	24 Vdc
to protect wiring
	Logic Power Supply
	(User Supplied)

24 Vdc 24 V RTN

Single point PE ground

To other drives or equipment , I/O supplies, etc..

Figure 19: Logic Power Supply Wiring Diagram

For UL applications, the logic power supply must be a UL recognized or UL listed limited voltage/limited energy or limited voltage/limited current supply, or a limited voltage supply with overcurrent protection appropriate for the wiring and not to exceed 12 A. Isolate line connected circuits from low voltage circuits.

For applications to meet the EU Low Voltage Directive, an approved 24V supply must be used and the negative side must be grounded to PE. PELV circuits must have protective separation for 300 V system voltage from mains connected circuits, including separation between encoder circuits and motor power wiring. If all circuits connected

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