background image

Page 7

DPB1U & DPG1U SERIES

OPERATING MANUAL

P O W E R I N G   T E C H N O L O G Y

Manual No. DPB-DPG-4

dpb_dpg-man-rev4-0317.indd

6.0  

DESCRIPTION OF OPERATION

6.1

 

Power Distribution Circuits.

  A simplified schematic diagram of the distribution panels 

is shown in Figure 2.  The battery input to each load connects to a high-current copper bus 

bar from which the individual fuses or circuit breakers distribute power to the loads.  The 

return input connects to a similar bus bar to which the individual loads terminate.  The A 

and B loads are totally independent and isolated with the exception of models incorporating 

the ‘S’ option.

   

CIRCUIT

BREAKERS

or

GMT FUSES

BATT.

BATT.

INPUT

RET.

INPUT

RET.

HI-CURRENT BUS BAR

HI-CURRENT BUS BAR

HI-CURRENT BUS BAR

HI-CURRENT BUS BAR

LOADS

LOADS

1

 

2

 

3... 

N

N

 

...3

 

1

A SIDE

ALARM

CIRCUITS

b SIDE

ALARM

CIRCUITS

A SIDE

B SIDE

-S OPTION

-S OPTION

 

Figure 2. Block Diagram

6.2 

Alarm Circuits.

  The alarm circuits detect a tripped circuit breaker or blown and, in this 

event, turn on the red part of the LEDs.  The alarm circuits also each drive Form C relay 

contacts.  If one or more circuits open or if there is an input power failure, the relays are 

de-energized and the contacts are used to control external audible or visual alarms.  The A 

and B alarm circuits are also independent and isolated from each other.

LED STATE MEANINGS

LED State

Meaning

Green

OK

Red

Breaker Trip

or

Breaker OFF

or

Fuse Blown

OFF

No Input Power

Table 2.  LED State Definitions

Summary of Contents for DPB1U SERIES

Page 1: ...al No DPB DPG 4 2017 UNIPOWER LLC All Rights Reserved dpb_dpg man rev4 0317 indd UNIPOWER LLC 3900 Coral Ridge Drive Coral Springs Florida 33065 USA sales unipowerco com North America 1 954 346 2442 L...

Page 2: ...indd Contents 1 0 INTRODUCTION 4 2 0 FEATURES OPTIONS 5 3 0 PRODUCT LINE 5 4 0 SAFETY INDUSTRY STANDARDS 6 5 0 WARRANTY summary 6 6 0 DESCRIPTION OF OPERATION 7 7 0 SPECIFICATIONS 8 8 0 FRONT PANEL DE...

Page 3: ...Figure 4 DPG1U Front Panel View 8 Figure 5 Back Panel View 10 Figure 6 Input Bus Bar Detail 10 Figure 7 Output Barrier Strip Detail 11 Figure 8 Alarm Contact Ground Detail 12 Figure 9 Series Connecti...

Page 4: ...r 23 inch relay rack with corresponding brackets They can be mounted from the front of the rack with offsets every inch from front to back to align with existing rackmounted equipment Figure 1 shows t...

Page 5: ...t can be supplied DC from a single feed The A and B sides must have the same voltage and polarity Not available with option F Option F special order only Fail safe operation for 24 and 48V units Aand...

Page 6: ...ground terminal must be connected to the system frame ground or other proper safety ground for the protection of personnel 4 5 All connections to the Distribution Panels should be carefully checked fo...

Page 7: ...BREAKERS or GMT FUSES BATT BATT INPUT RET INPUT RET HI CURRENT BUS BAR HI CURRENT BUS BAR HI CURRENT BUS BAR HI CURRENT BUS BAR LOADS LOADS 1 2 3 N N 3 2 1 A SIDE ALARM CIRCUITS b SIDE ALARM CIRCUITS...

Page 8: ...able breaker fuse sizes 2 See Ordering Guide to specify voltage 3 For units with fail safe option the case depth is 10 44 inches 265mm 8 0 FRONT PANEL DESCRIPTION The front panel of the DPB1U shown in...

Page 9: ...8 2 DPG1U Configuration Details Model DPG1U A B C 1 24 or 48V versions only 2 Voltage and polarity for A B sides must be the same CODE OPTION F Fail Safe 1 2 S Single Bus 20 way CODE VOLTAGE 1 48V 4...

Page 10: ...OFF O ON I 15 OFF O ON I 15 OFF O ON I 15 OFF O ON I 15 OFF O ON I 15 OFF O ON I 15 5 6 3 4 1 2 OFF O ON I 15 OFF O ON I 15 OFF O ON I 15 OFF O ON I 15 OFF O ON I 15 OFF O ON I 15 17 12 434 9 1 74 44...

Page 11: ...e connections are numbered to correspond with the numbers of the front panel breakers The upper strip connections are from the battery through the breakers the lower strip connections are the returns...

Page 12: ...two Phoenix Contact spring clamp terminal blocks B SIDE is for the Form C relay contact of side B and A SIDE is for the Form C relay contact of side A The terminals viewed from left to right are the...

Page 13: ...pment from our factory The unit and circuit breakers are shipped separately Upon receipt of the unit it should be carefully unpacked and inspected for any damage in shipment 10 2 If there is evidence...

Page 14: ...TN BAT RTN 1 2 3 4 5 6 7 8 9 10 SIDE A SIDE B BAT RTN BAT RTN 1 2 3 4 5 6 7 8 9 10 ALM B ALM A NO C NC NO C NC BAT RTN BAT RTN 1 2 3 4 5 6 7 8 9 10 SIDE A SIDE B BAT RTN BAT RTN 1 2 3 4 5 6 7 8 9 10 A...

Page 15: ...l not harm the distribution panel as it is POLARITY NEUTRAL However it may cause serious harm to the load Check to make sure that the chassis safety ground connection is made Make sure that all connec...

Page 16: ...the resistance between pins 1 and 2 This should read open Measure the resistance between pins 2 and 3 This should read short 12 5 On the A side insert a blown fuse into fuse no 1 position or trip cir...

Reviews: