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01874C 

 

 

NATIONAL 
       RAILWAY 
               SUPPLY

 

 
 
 
 
 

Operating and Service Instructions for 

VVR Portable Battery Charger

 

 

 

 

VVR PORTABLE BATTERY CHARGER 

MODEL 21120 VVR 85-60P 

 
 
 

PLEASE SAVE THESE IMPORTANT SAFETY AND OPERATING INSTRUCTIONS 

 

For correct operation of the equipment, it is important to read and be familiar 

with this entire manual before operating the charger. 

DO NOT DISCARD THIS MANUAL AFTER READING. 

 

 

 

LOOK FOR THIS SYMBOL TO POINT OUT SAFETY PRECAUTIONS.  IT MEANS:  
BECOME ALERT—YOUR SAFETY IS INVOLVED.  
IF YOU DO NOT FOLLOW THESE 
SAFETY INSTRUCTIONS, INJURY OR PROPERTY DAMAGE CAN OCCUR.

 

 
 
 

1.  IMPORTANT SAFETY INSTRUCTIONS 

 

a.  Before using the battery charger, read all the 

instructions and caution markings on the 
battery charger, battery, and all products 
using the battery. 

 

b.  Do not touch the uninsulated parts of the  

DC output connectors, or the battery 
terminals, as there is a possibility of 
electrical shock. 

  c. Batteries produce hydrogen gas while 

operating, which can explode if ignited. 

 

Never use an open flame, smoke, or create 
sparks in the vicinity of the battery.  Ventilate 
the area well when the battery is charging in 
an enclosed area. 

 

d.  Batteries contain caustic material that 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.  The charger must be programmed for the 

proper battery voltage and amperage before 
the charge is started. 

 

f.  Verify charger display says "OFF" before 

connecting or disconnecting DC charger 
cables from battery. 

  g. De-energize all AC and DC power 

connections before servicing this unit.  If 
injury does occur, apply standard treatment 
for electrical shock and, if necessary, 
consult with a physician. 

 

h.  The charger is not for unprotected outdoor 

use.  Do not expose the charger to rain or 
snow. 

 

i. 

Do not operate the charger if it has received 
a sharp blow, been dropped, or otherwise 
damaged. 

j.  Do not disassemble the charger.  Have the 

charger examined by a NATIONAL 
RAILWAY SUPPLY service agent.  If the 
charger is assembled incorrectly, damage to 
the charger and the batteries or an electrical 
shock may result. 

 

2. OPERATING 

INSTRUCTIONS 

 

a.  Connect DC cables to battery cells to be 

charged: RED clamp to battery positive (+) 
and BLACK to battery negative (-). 

*01874*

Summary of Contents for 21120 VVR 85-60P

Page 1: ...the battery is charging in an enclosed area d Batteries contain caustic material that 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 The charger must be progra...

Page 2: ...s output current flows through a shunt and is sensed by the electronic control module along with the chargers output voltage These values are converted into drive pulses for the SCRs by the control module The pulsating charge a pulse occurs each time an SCR is on current is filtered by the batteries to provide a smooth output The charger has an IE profile which is a High rate constant current and ...

Page 3: ... AC jumpers based on the AC voltage range Use the instructions on the inside of the charger door to configure the AC jumpers Connect the jumpers as shown in the figure and torque the screws to 18 inch pounds for proper connection PUT EXTRA JUMPER IN PARALLEL FIGURE 1 208 VAC JUMPER SETTING 480 VAC JUMPER SETTING 240 VAC JUMPER SETTING WARNING FAILURE TO PROPERLY CONNECT THE AC VOLTAGE CONDUCTORS C...

Page 4: ...ctions 8 11 may be programmed press the UP and DOWN buttons until the new value desired is displayed Holding in the UP or DOWN buttons will rapidly advance through the numbers Then press ENTER Response The new value is stored in memory and the function number is displayed If CLEAR is pressed the new value is ignored and the function number is displayed e To exit programming press CLEAR from the fu...

Page 5: ...ill stop until the temperature decreases 10 NF Excessive Cable Drop The battery voltage measured at the charger s terminals has exceeded the voltage measured at the batteries by 4 volts This indicates there may be a problem with the cables between the charger and the batteries or between the batteries 11 NF Battery Sense Cable This option is not available 12 F Programming Lost If this occurs the c...

Page 6: ...9928S 1 BRACKET TERMINAL STRIP 29944S 2 GLIDE LEVELING 10910S 2 FUSE DC 12871S 2 FUSE AC 60 AMP 13633S 2 FUSE AC 50 AMP 13636S 2 FUSE AC 35 AMP 13619S 2 HEATSINK 30074S 1 HEATSINK MOUNTING PLATE 12616S 1 PLATE INSULATOR FUSEHOLDER 12947S 1 PLATE INSULATOR SHUNT 17689S 1 LATCH SPRING 22851S 1 HANDLE ASSEMBLY 30407S 1 HANDLE CHARGER 18278S 1 TERMINAL STRIP 30073S 2 CORD BRACKET 30077S 2 PANEL SIDE 3...

Page 7: ...www nationalrailwaysupply com 7 01874C 12 WIRING DIAGRAM FOR 208 240 480 VVR 85 60P ...

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