background image

 

 

 

10 

Always leave some slack in the wires before cutting 
to length.  All connections to the EP are made in the 
same way: 
 
1.  Carefully strip 1/4 – 3/8” of insulation from the 

wires.  Twist the strands tightly and neatly 
following the natural twist of the wires. 

2.  Unscrew the cage-clamp screw about 10 turns.  

This insures the jaws of the clamp are open. 

3.  Insert the wire into the terminal opening making 

sure no strands are splayed out.  Tighten the 
screw. Do not use excessive force. 

4.  Tug on the wire to verify a secure connection. 
 
Follow the Wiring Diagram in Figure 7.3.1

 

to make 

all connections.  

Pay close attention to the battery 

wiring. 

1. 

With mains power and the INPUT switch 
OFF

, make connections to the AC input.  The 

N

” terminal should be used for L2 in high 

voltage AC systems.  In DC powered systems, 
the “

N

” terminal should be used for the negative 

polarity and the “

L

” for the positive. 

2.  Make the alarm connections, if used. 
3. 

With the positive wire AT THE BATTERY 
disconnected

, make the battery connections to 

the EP.  Double check polarity, and make the 
final connection at the positive battery terminal 
last.  There will be small spark as the unit draws 
a small current from the battery.  

REVERSE 

HOOK-UP WILL BLOW THE FUSE.

 

4. 

With the OUTPUT breaker OFF, 

make the load 

connections, again checking for correct polarity. 

5.  See Section 8.1 for Power-up information.

Figure 7.3.1 – Wiring Diagram

Содержание EP 12-10

Страница 1: ...Enclosure Power Supply Models EP 12 10 EP 24 5 Newmar 2911 W Garry Ave Santa Ana CA 92704 Tel 714 751 0488 Fax 714 957 1621 M EP As of April 2008...

Страница 2: ...________ 9 7 1 LOCATION 7 2 MOUNTING 7 3 WIRING 8 0 OPERATION ________________________________________________________ 11 8 1 INITIAL POWER UP 8 2 NORMAL OPERATION 8 3 TROUBLESHOOTING 9 0 MAINTENANCE...

Страница 3: ...rom the system battery provides continuous load power free of sharp transients Wide Operating Temperature of 20 60 C 4 140 F makes it suitable for indoor or outdoor use Input Fused provides protection...

Страница 4: ...Fig 4 2 1 In LINE DOWN mode the power supply delivers no power All load power is supplied by the battery In the LINE DOWN mode the alarm contacts are closed in the N O position Fig 4 2 1 shows the cu...

Страница 5: ...densing Efficiency 75 78 EMC Emissions Radiated Noise 30mHz 1gHz per FCC Class B Conducted Noise 150kHz 30mHz per FCC Class B ALARM CONTACTS DC Current Rating at 30 VDC max 1 0 1 0 Amps AC Current Rat...

Страница 6: ...5 0 4 Shipping Data PARAMETER EP SERIES UNIT MIN TYP MAX WEIGHTS DIMS Weight 3 lbs Shipping Weight 5 lbs Shipping carton size 11 5 x 9 x 5 Inches Shipping volume 0 3 cubic feet Storage temperature 30...

Страница 7: ...p hours 17 Amp hours Max Bat Cap 400 Amp hours 200 Amp hours The correct battery capacity for your system will depend on two factors your load and the length of time you wish to have back up power The...

Страница 8: ...nt Amps To determine the minimum required Battery Capacity 1 Draw a vertical line through the Average Load Current 2 Draw a horizontal line through the desired HOLD UP Time 3 Mark the intersection 4 F...

Страница 9: ...el vertical and the text horizontal As shown in the figures below at least 1 of clearance should be allowed above and below the unit for airflow Do not block the ventilation holes on the top back and...

Страница 10: ...Pay close attention to the battery wiring 1 With mains power and the INPUT switch OFF make connections to the AC input The N terminal should be used for L2 in high voltage AC systems In DC powered sys...

Страница 11: ...f so record the voltage and allow several minutes or hours and check the voltage again If you suspect the system is not functioning properly see the troubleshooting points in Section 8 3 8 3 Troublesh...

Страница 12: ...method can be employed in the field If the battery can supply the load for the desired time it can be deemed good If the battery will not accept charge or cannot deliver the required energy it is wor...

Страница 13: ...he end of Section 8 3 to determine if your battery has sufficient capacity for your application Hold up discharge and recovery times are shown in Graphs 6 5 1 and 6 5 2 in Section 6 5 Lead and other m...

Страница 14: ...scillation will not occur once an LVD has been triggered This also ensures that the battery is given the full output of the DC UPS to recharge before resuming supply to the load A value of 13 1 Volts...

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