American Power Conversion 250 A manual ATS monitoring unit



ATS Component Details

ATS monitoring unit

This port connects to the Source 2 volt-sensing circuit

	board, the Source 1 volt-sensing circuit board, the
	Source 1 current transformers, and the distribution
8 8 5- 22 8 8	panel volt-sensing circuit board.

 This port connects to the ATS interface circuit board.

 The display port (RJ-45) connects the monitoring unit

to the display interface.

The power LED indicates whether the monitoring unit

						is receiving power.
						 The console port (DB-9) is used to configure items
			1	4		relating to servicing and for communication with the
				1		generator (see item 4 on page page 13).
			2
				1 5
			3
				6
			4	1
					
				1 7
			5
			6	1 8		NOTE: A laptop computer can be connected to this
				1
			7
			8	2 0
				2 1
		LIN K RX/TX	2 1 1 1 0 9	2 4 2 3 2 2		port for configurations.
			1	2 5		 The EPO DIP switches configure the EPO input for
	N E T O R K	1 0 = G R N 1 0 0 = O R N
			1 3
						the type of EPO switch that is connected: Normally
	R E T	STATU S	IS PL A Y			Open (NO) or Normally Closed (NC).
		TR
			D			 When the EPO Arm/Test rocker is in the Test
				R
				PO E		position, engaging the EPO switch will not cause the
		A RM ED
						load to be shut down. When the rocker is in the Armed
	EPO		R S-2 3 2 C O N S O LE PO R T	9 6 00 -8 N -1
		TE ST				position, engaging the EPO switch turns OFF the ATS
		N C				Source 1 and Source 2 switches and engages the
		N O				generator’s emergency stop button. When the EPO

switch is engaged, the Not in Automatic LED on the ATS is lit (see page 64 for more information about testing the EPO switch).

The EPO Armed LED is lit green when the rocker is in the Armed position. The LED is dark when

the rocker is in the Test position.

The EPO Tripped LED is lit red when the EPO switch is engaged (the EPO button is pressed), regardless of the state of the EPO Arm/Test rocker.

The reset button resets the network processor; it does not reset the ATS or the monitoring unit.

The network port connects to the surge-protected ethernet port on the user connection plate (see page 16 for more information about the surge-protected ethernet port).

This port connects to the ATS interface circuit board.

The optional User/EPO Contacts port is connected to the user interface board on the user connection plate attached to the roof of the ATS. This port supports relay outputs (4), input contacts (4), and one

EPO input (see page 16 for more information).

InfraStruXure Power Generation System 17