2 Theory of Operation (continued)

2.13 Bypass SCR Temperature Detection

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

5VREF

RM76 RM77

RM79

+12VS

4

UM7B

 

 

6

 

7

 

5

2

STS_TH-

 

 

 

 

 

 

RM87

11

 

CM49

G1

G1

 

 

5VS

 

2

 

 

 

DM23

RM84

3

HS_TEMP

 

 

CM48

 

(105)

 

 

 

1

G1

 

 

Located on NH-SYS-S or NH-SYS-SA board (Driver Circuit for Bypass SCR)

CNSA6

1 5VREF

2 STS TH-

CON2(2.54)

(a)Temperature sensor (NTC) is screwed onto the heat-sink of bypass SCR and connected to CNSA6 on the NH-SYS-S or SA board.

(b)MCU detects the temperature via HS TEMP (105).

2.14Communication Circuit for RS232

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)

RR26

5VS

#TX_232

QR4

RR33 G

RR37

RR43

5VS

#RX_232

+12VSF

CR21G4

232_RX

1

UR15

7 8

RR31

2

6

 

 

 

+12VSF

3

 

5

-12VSF

D

 

 

 

 

RR118

4

 

 

S

 

 

RR38

G1 CR27

 

5VS

 

+12VSF

G1

8 7

1

 

 

 

6

UR20

2

232_TX

 

 

 

 

 

 

 

5

 

3

RR44

G1

 

 

D

 

 

4

QR5

G

 

 

 

 

 

 

 

S

RR47

 

 

 

5

 

 

 

 

 

9

 

 

 

G4

 

 

 

4

 

 

 

 

 

8

 

 

232_TX

 

 

3

 

 

 

 

 

 

 

 

7

 

 

232_RX

 

 

2

 

 

 

 

 

 

 

 

6

 

 

 

 

 

1

 

 

 

 

 

 

 

 

CNR6

RS232 Port

G4

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

(23) TX_232

(24) RX_232

(a)System MCU TX_232 (23) transmits data via RS232 port.

(b)System MCU RX_232 (24) receives data via RS232 port.

RM107

#TX_232

CM58

RM111 G1

#RX_232

CM62

G1

61

Page 43
Image 43
Tripp Lite SU60KX manual Bypass SCR Temperature Detection, Communication Circuit for RS232