Emerson 400KVA, U/300/S/12P EPO input port, Auxiliary DC power output port, Communication ports

22 Chapter 3 Electrical Installation

Table 3-5 Description of dry contact output port

Position	Name	Description
J13.2	BFP_O	Bypass feedback protection relay (NO)
J13.3	BFP_S	Bypass feedback protection relay center
J13.4	BFP_C	Bypass feedback protection relay (NC)
J21.2	INV_O	On inverter dry contact relay (NO)
J21.3	INV_S	On inverter dry contact relay center
J21.4	INV_C	On inverter dry contact relay (NC)
J25.2	ACF_O	Main input voltage or frequency fault relay (NO)
J25.3	ACF_S	Main input voltage or frequency fault relay center
J25.4	ACF_C	Main input voltage or frequency fault relay (NC)

Note

All auxiliary cables must be double insulated. Wire should be 0.5~1.5mm2 stranded.

EPO input port (X2)

The UPS has an Emergency Power Off (EPO) function that operates by a button on the UPS door or by a remote contact provided by the user.

The X2 slot, shown in Figure 3-7, is the remote EPO input port, which is described in Table 3-6.

Figure 3-7 EPO input port

Table 3-6 Description of EPO input port

Position	Name	Description
J28.1	EPO_NC	EPO activated when opened to J28.2
J28.2	EPO_NC	EPO activated when opened to J28.1
J28.3	EPO_NO	EPO activated when shorted to J28.4
J28.4	EPO_NO	EPO activated when shorted to J28.3

The remote EPO facility is connected to the normally open or normally closed remote stop switch between these two terminals using shielded cable. If this function is not used, terminals J28: 3&4 must be opened and J28: 1&2 must be closed.

Note

The emergency stop action within the UPS shuts down the rectifier, inverter and static bypass. It does not internally disconnect the input power supply. To disconnect ALL power to the UPS, open the upstream feeder breaker(s) when the remote EPO is activated.

Normally closed EPO–J28: 1, 2, these terminals are supplied factory-linked on the monitor board.

Auxiliary DC power output port (X5)

The auxiliary DC power output port X5 provides auxiliary DC power for optional SNMP card. The voltage is between 9V to 12V. The maximum current is 500mA.

Communication ports

The communication ports include the serial ports RS232-1 and RS232-2, Intellislot intelligent communication ports. 1. Serial ports RS232-1 and RS232-2

RS232-1 provides serial data and is intended for direct use with Emerson UPSitePlusTM UPS monitoring software. RS232-2 provides serial data and is intended for use by authorized commissioning and service personnel.

HIPULSE U UPS Single Module And “1+N” (Expandable) 160/200/300/400kVA User Manual