Emerson NT5C06D Wiring the power shelf, Procedure 1 Installing the power shelf Step Action

20 Installation and start-up

Procedure 1 - Installing the power shelf

Step	Action
1	Position the power shelf, without any rectifiers plugged in, against the
	framework.
2	Secure the shelf in the position indicated by the job drawing (normally directly
	below the controller or another shelf). At least one star washer must be
	installed on one holding screw to ensure maximum framework ground
	continuity.
3	Release the clamping bar from the front of the power shelf
4	Remove the AC and DC junction box cover, located on the left and right sides.
	Store the parts for reinstallation after the wire connections have been
	completed.
	end

Wiring the power shelf

Once the power shelf has been installed and firmly secured proceed with the wiring.

CAUTION

The power shelf wiring should be installed by qualified personnel and in accordance with the local electrical codes.

DANGER

Input voltage to the rectifier and the power shelf is at a hazardous potential. Ensure that the power switch is OFF at the AC service panel working on the power shelf. Hazardous voltages may still be present at the terminals even if the rectifiers are OFF. Use a voltmeter to verify the absence of voltage.

DANGER

Improper wiring can cause personal injury and equipment damage. Verify the proper polarity of the battery leads before connecting them to the power shelf, and clearly identify the positive and negative leads.

UM5C06D ( 169-2071-504 ) P0831010 Standard 7.00 May 2001