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www.nationalrailwaysupply.com 6 

01545J 

13. WIRING DIAGRAM 
 
 

 

AC FUSE

+

C

C    OUTPUT CAPACITOR

AC FUSE

3
2

1

VLT

BLU

GRY

P1

PROBE

TEMPERATURE

REMOTE

D    DIODE ASSEMBLY

SHOWN

SETTING

115V

BLK

BL

K

BLK

AS VIEWED FROM OUTSIDE CHARGER

VR2  VARISTOR

VR1  VARISTOR WITH CAP

D

VR1

VR2

MODULE

CONTROL

BREAKER

CIRCUIT

DETAIL

CONNECTOR

P1

1

2

3

WHT

WHT

SHUNT

GND

8

BLK

7

6

5

4

3

2

1

-BATTERY

+BATTERY

BLK

ORG

A

C

A

C

YEL

RED

BRN

BRN

SCR

SCR

BLK

BLK

ELECTRONIC

A

J1-1

J1-7

J1-9

J1-8

J1-10

J1-11

J1-6

J1-5

J1-3

J1-12

J1-4

BLK

ORANGE SHUNT-

YELLOW SHUNT+

BLACK

-BATTERY

BROWN

SCR

BROWN

SCR

WHITE

AC XFRMR #5

WHITE

AC XFRMR #8

RED

+BATTERY

J1-8
J1-9

J1-1

J1-10
J1-11

J1-6

J1-5

J1-7

TMP PROBE (-)

J1-3

J1-12

TEMP PROBE SENSE

J1-4

TEMP PROBE (+)

GRAY

BLUE

VIOLET

J1-2

NOT USED

JUMPER

C1

G

G

AC

LINE

LINE

AC

 

 
 

Summary of Contents for NRS-12

Page 1: ... may cause burns Do not get in eyes on skin or clothing If the gelled or liquid content of the batteries contacts the skin or clothing wash the area thoroughly with water In the case of contact with the eyes flush immediately with clean water for 15 minutes and obtain medical attention e Connect or disconnect the battery plug only when the charger output is off to prevent arcing or burning f Only ...

Page 2: ...ng used or the temperature probe is working improperly Temperature compensation uses a temperature reference of 77 F 25 C a voltage reference of 2 23 volts the voltage of a standard gel cell battery at 77 F and a compensation value of 3 0 mV per F or 5 4 mV per C The equivalent equation for the compensated voltage is Vcomp V k t 77 F Where V is the voltage of the battery at 77 F t is the temperatu...

Page 3: ...NALS EVEN AFTER THE AC IS DISCONNECTED BECAUSE OF THE ENERGY STORED IN THE CAPACITOR 7 TEMPERATURE PROBE The external temperature probe is an optional way of extending battery life by using temperature compensation One end of the temperature probe cable has a three pin plug which plugs into a receptacle labeled TEMP PROBE on the front of the charger The other end of the cable has the temperature s...

Page 4: ...bers the output current will go to zero and the yellow charging LED will flash The charger does not have a power switch When the AC power is applied to the charger the DC output will start and the yellow LED will be on To turn off the charger disconnect the AC power source 9 MAINTENANCE The battery charger requires minimal maintenance It should be kept clean and all connections are to be periodica...

Page 5: ...DUCER 30 BOX W ADHESIVE 29741S 1 TEMP TRANSDUCER 10 W TERMINAL 29742S 1 TEMP TRANSDUCER 30 W TERMINAL 04401S 1 TRANSFORMER CAP 15032S 2 OUTPUT CAP 14897S 1 CIRCUIT BREAKER ASSEMBLY 22908S 1 COVER ASSEMBLY 14786S 2 DIODE ASSEMBLY 14484S 1 TERMINAL TAP STRIP 03837S 2 FUSEHOLDER ASSEMBLY 12717S 1 VARISTOR ASSEMBLY W CAP VR1 15028S 2 FUSE 14789S 1 TAP STRIP ASSEMBLY W I O STUDS 14759S 2 VARISTOR ASSEM...

Page 6: ...BREAKER CIRCUIT DETAIL CONNECTOR P1 1 2 3 WHT WHT SHUNT GND 8 BLK 7 6 5 4 3 2 1 BATTERY BATTERY BLK ORG A C A C YEL RED BRN BRN SCR SCR BLK BLK ELECTRONIC A J1 1 J1 7 J1 9 J1 8 J1 10 J1 11 J1 6 J1 5 J1 3 J1 12 J1 4 BLK ORANGE SHUNT YELLOW SHUNT BLACK BATTERY BROWN SCR BROWN SCR WHITE AC XFRMR 5 WHITE AC XFRMR 8 RED BATTERY J1 8 J1 9 J1 1 J1 10 J1 11 J1 6 J1 5 J1 7 TMP PROBE J1 3 J1 12 TEMP PROBE S...

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