Emerson 200I/48-NT5C05C user manual Hazardous potentials

Installation 25

DANGER

Hazardous potentials

Input voltage to the cabinet is at a hazardous potential. Make sure the power is OFF and that the lever in the ac service panel is locked in the OFF position before attempting to connect the input line voltage to the ac box of the cabinet.

Procedure 5 - Cabling the ac input to the NT5C05CA / CB rectifiers

Step	Action
1	Install the ac breaker ( 30 A / 3 phase per rectifier ) in the 380 /
	415 volts ac service panel and lock it in the open ( OFF ) position.
2	Put the ac breaker to OFF.
3	Run the ac armored cable ( metric no. 25 [ 10 AWG ] 3 conductors
	and ground ) from the service panel, through the top of the cabinet,
	to the rear of the rectifier.
4	Secure the ac cable to the side of the cabinet using cable ties and
	adhesive anchors. Make sure the cable are located in a manner that
	will not interfere with the insertion of the rectifier ( see Figure 6 ).
5	Ground the conduit sheath to the ac service panel. Insulate the
	conduit connector at the rectifier end with electrical tape to isolate it
	from the ac ground.
6	Remove the two ac protection plates located at the rear of the
	rectifier.
7	Strip 10 inches ( 250 mm ) of armored insulation from the end of the
	ac cable. Insert the wires in the 90° conduit connector ( see Figure
	7 ).
8	Run the signal cable from the rectifier to the interconnect board or
	controller as described in the "Control signal connections" section.
9	Connect the green ground wire to the FR GND terminal.
10	Connect the power leads to the L1, L2 and L3 terminals ( any phase
	sequence ) ( see Figure 7 ).
11	Tighten the elbow connector and reassemble the ac protection plate.
12	Run the signal cable from the rectifiers to the interconnect board or
	controller as specified in the " Connecting the control signals"
	section.
13	Secure the signal cables to the insulating busbar support, located in
	the cabinet, with cable ties.
14	Start-up the rectifier as described in the “ Start-up “ procedure.
	 end

Emerson Energy Systems Rectifier 200I/48 NT5C05C Installation and User Manual