Emerson UPS Systems installation manual Control wiring connections with interlock, From Purpose

Installation Drawings

Figure 16 Liebert NXL Maintenance Bypass Cabinet control wire diagram with interlock

	Connections at UPS External
	Interface Board (EIB) 1		3
		TB0821
	02-806708	TB0811	3
		1
	3	TB0813
1		1	3
	TB0824	TB0820
		1	3

LOW VOLTAGE

TERMINAL STRIP

- TB1 -

Table 5	Control wiring connections with interlock
From	To	Purpose

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

TB1-16

TB1-15

TB1-14

TB1-13 TB1-12

TB1-11

TB1-10

TB1-9

TB1-8 TB1-7 TB1-6

TB1-5 TB1-4 TB1-3 TB1-2

TB1-1

TB0820

TB0813

TB0811

TB0824

TB0821

EPO PB SW

TB1-1	Customer EPO
	Push Button Switch
		EPO Signal
TB1-2	Customer EPO
	Push Button Switch
TB1-3	TB0821-2	Maintenance Bypass
TB1-4	TB0821-1	Enable Contacts
TB1-5	TB0824-3
TB1-6	TB0824-2	UPS REPO Contacts
TB1-7	TB0824-1
TB1-8	TB0811-3
TB1-9	TB0811-2	MIB Contacts
TB1-10	TB0811-1
TB1-11	TB0813-3
TB1-12	TB0813-2	MBB Contacts
TB1-13	TB0813-1
TB1-14	TB0820-2
TB1-15	TB0820-1	EPO Status Contacts
TB1-16	TB0820-3

WIRE DIAGRAM WITH INTERLOCK

23