2 Theory of Operation (continued)

2.17 Communication Circuit for Input Dry Contact and REPO

Located on NH-SYS-R board (Circuit for RS232, Output Dry Contact, Parallel Port, Connector to connect with each Power Module, Circuit for 2 Slots)

M2

CNX4

1

2

 

RX26

 

REPO

 

5VS

 

UX11

 

#R_EPO

4

 

 

 

+12VSF

CX14

3

 

 

 

 

REPO

 

 

 

 

G1

 

 

 

RX25

1

RX28

 

REPO

2

 

 

G4

INPUT DRY CONTACT

M3

CNX5

1

2

3

4

 

RX35

 

 

 

5VS

 

UX12

 

DRY1

4

 

 

 

+12VSF

CX17

3

 

IP_DRYA

 

 

 

+12VSF

G1

 

 

IP_DRYB

 

 

RX44

 

 

 

5VS

 

UX13

 

DRY2

4

 

 

 

 

CX22

3

 

RX34

1RX37

2

 

 

G4

 

RX42

1

RX45

 

IP_DRYB

2

 

G4

G1

Located on NH-SYS-M board (System MCU and Control Circuit)

(86) R EPO

RM118

#R EPO

 

CM69

(79) DRY 1

RM123 G1

DRY1

 

CM82

(80) DRY 2

RM129 G1

DRY2

CM87

G1

(a)System MCU will detect input dry contact via DRY_1 (79) and DRY_2 (80)

(b)REPO (Remote Emergency Power Off) can be detected via R_EPO (86) by system MCU (high active).

(c)When REPO has activated, System MCU will shut down the output. After the REPO release, the unit will stay in bypass mode.

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Image 46
Tripp Lite SU60KX manual Communication Circuit for Input Dry Contact and Repo, Input DRY Contact