User manual

Chapter 1 Installation Of UPS Module 13

NXr UPS Module And Parallel System 30kVA ~ 200kVA User Manual

1.7.2 Battery Circuit-Breaker (BCB) Port

J6 is the BCB port. The port is shown in Figure 1-9 and described in Table 1-3.

12V

GND

DRV

12V

Figure 1-9 BCB port

Table 1-3 BCB port description

Position Name Description

J6.1 DRV BCB driver signal – for BCB UV coil when used

J6.2 FB BCB aux contact closed to J6.3 when BCB is open

J6.3 GND Power ground

J6.4 OL BCB on line – enables J6.1 and J6.2 (when J6.4 is closed to J6.3)

The connection between the BCB port and BCB is shown in Figure 1-10.

电池开关

BCB

J10

GND

DRV

Aux-N.O.

Aux_N.O.

BCB

Figure 1-10 Connection between BCB port and BCB

1.7.3 Maintenance Switch And Output Switch State Port

J9 is the maintenance switch and output switch state port. The port is shown in Figure 1-11 and described in Table

1-4.

EXT-S

CAB-S

EXT_Q3

IN_S

GND

EXT_OUT

Figure 1-11 Maintenance switch and output switch state port

Table 1-4 Description of maintenance switch and output switch state port

Position Name Description

J9.1 EXT_Q3 External maintenance bypass (EBP) switch – Aux Contact closed to J9.4 when

EBP is open.

J9.2 IN_S J9.2 shorted to J9.4 when Internal maintenance switch is closed

J9.3 EXT_OUT

External output isolator (EOI) Aux Contact closed to J9.4 when EOI is closed.

J9.4 GND Power ground

Aux contact is open

when BCB is closed