Agilent Technologies 5741A Parallel Connections, Grounding the Output, Connected in parallel

2 Installation

Grounding the Output

	The output of the power supply is isolated from earth ground. Either
	positive or negative voltages can be obtained from the output by
	grounding (or "commoning") one of the output terminals. Always use
	two wires to connect the load to the output regardless of where or
	how the system is grounded.
	To avoid noise problems caused by common-mode current flowing
	from the load to ground, it is recommended to ground the output
	terminal as close as possible to the power supply chassis ground.
	SHOCK HAZARD For models up to 60VDC rated output, no point shall be more
WARNING
	than +/-60VDC above/below chassis ground. For models > 60VDC rated
	output, no point shall be more than +/-600VDC above/below chassis ground.
	There is also a potential shock hazard at the IEEE/LAN/USB ports when
	using power supplies with rated or combined voltages > 400VDC with the
	positive output of the power supplies grounded. Do not connect the positive
	output to ground when using the IEEE/LAN/USB under the above conditions.

Parallel Connections

	Only power supplies that have identical voltage and current ratings can be
CAUTION
	connected in parallel.
	Up to four units of the same voltage and current rating can be
	connected in parallel to provide up to four times the output current
	capability. Refer to the following figures for typical connections of
	parallel power supplies using either local or remote sensing. The
	figures show two units, however, the same connection method
	applies for up to four units.

-S	-LS +LS	+S	As short as possible
MASTER		+V
			Twisted
POWER SUPPLY		-V
			pair
	J1-25
	Parallel
	Current Program
J1-8 J1-12 J1-10
SLAVE		+V
POWER SUPPLY		-V
-S	-LS +LS
		+S

LOAD

Local Sensing

28 Series N5700 User’s Guide