Rockwell Automation 1606-XLSBUFFER48 User Manual

Reference Manual

1. Description .............................................................. 1

2. Specication Quick Reference .......................... 1

3. Catalog Numbers .................................................... 1

4. Certication Marks .............,..................................... 1

5. Standby Mode ........................................................4

6. Charging Mode ..................................................... 4

7. Buer Mode ............................................................ 5

8. Functional Diagram ............................................. 6

9. Front Side and User Elements ........................ 6

10. Operating Diagram ............................................. 7

11. Active and Ready Signal, Inhibit Input .......... 7

12. Terminals and Wiring .................................... 8

13. Reliability .......................................................... 8

14. EMC ...................................................................... 9

15. Environment ................................................... 9

16. Protection Features .................................. 10

17. Safety ................................................................ 10

18. Certications

.................................................. 10

19. Physical Dimensions and Weight ......... 11

20. Wiring Diagrams ........................................ 12

Bulletin 1606 Switched Mode Power Supplies

Catalog Number: 1606-XLSBUFFER48

Index

Installation Notes

Mounting Orientation—The power terminal shall be located on top of the unit.

Cooling—Convection cooled, no forced air cooling required. Do not obstruct air flow!

Recommended Installation Clearances—40mm on top of unit; 20mm on bottom of unit; 0mm (or 15mm if adjacent device is a heat source) on

the left and right sides of the unit.

Intended Use—This buffer unit is designed for use in panel board installations or other in-building applications where a suitable mechanical
enclosure is provided to fulfil local requirements.

Service Parts—This unit does not contain any service part. Should damage or malfunction occur during installation, turn power off immediately and
return unit to the manufacturer for inspection.

Bulletin 1606 Switched Mode Power Supplies

Buer Unit

■

Buering with electrolytic capacitors instead
of lead batteries

■

Buering of 48V loads

■

Minimum hold-up time 0.1s at 20A and 0.2s at 10A

■

Longer hold-up time at lower loads

■

Clear status indication by status LED and signaling
terminals

■

Quick-connect spring-clamp terminals

■

3 year warranty

1. Description

2. Specication Quick Reference

Rated voltage DC 48V
Voltage range 48-56V
Output voltage 45V or

V

IN

–2V

Buer mode
select with jumper

Output current 0 to 20A

Hold-up time

min 0.1s 45V, 20A
typ 0.15s 45V, 20A
min 13.4s 45V, 0.1A
typ 21s

45V, 0.1A

Charging current

max 500mA

Charging time

typ 21s

Input current typ 40mA standby mode
Power dissipation typ 1.9W standby mode
Temperature range

-25°C to +70°C operational

Dimensions 64x124x102mm WxHxD

The buer unit is a supplementary device for regulated
DC48V power supplies. It buers load currents during
typical mains faults and load peaks.

Working principle

In times when the power
supply provides sucient
voltages, the buer unit
stores energy in integrated electrolytic capacitors. In case of
mains voltage fault, this energy is released again in a
regulated process.

Bridges mains faults
without interruption

Statistic show that 80% of
all mains fault lasts less
than 0.2s. These mains
faults are completely bridged by the buer unit. This
increases the reliability of the system as a whole.

Extended hold-up time

Once mains power fails or
is switched o, the buer
unit will continue to
provide the load current
for a dened period of time. Process data can be saved and
processes can be terminated before the DC power switches
o. Controlled restarts are subsequently possible.

Easy to handle, expandable and maintanance-free

The buer unit does not require
any control wiring. It can be
added parallel to the load circuit
at any given point. Buer units
can be switched in parallel to
increase the output ampacity or the hold-up time.

DC

Charge

Discharge

Buffer

AC

DC

Buffer Unit

AC

DC

Buffer Unit

DC

Buffer

Unit(s)

Power

Supply

Load

AC

+

-

3. Catalog Numbers

4. Certication Marks

Buer Unit

1606-XLSBUFFER48

48V, 20A, 200ms

Accessory 1606-XLB Wall mounting

bracket

UL 508

UL 60950-1

EMC, LVD

C-Tick

GOST R

2 Rockwell Automation Publication 1606-RM027A-EN-P — April 2014

All parameters are specified at 24V, 20A, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.

Bulletin 1606 Switched Mode Power Supplies

Intended Use

• This device is designed for installation in an enclosure and is intended for the general professional use such as in industrial control, office,
communication, and instrumentation equipment.

• Do not use this power supply in equipment where malfunction may cause severe personal injury or threaten human life.

• This device is designed for use in non-hazardous, ordinary or unclassified locations.

Installation Requirements

• This device may only be installed and put into operation by qualified personnel.

• This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect.

• If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to the factory for inspection.

• Mount the unit on a DIN rail so that the terminals are located on the bottom of the unit. For other mounting orientations, refer to derating

requirements in this document.

• This device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not cover ventilation grid
(e.g. cable conduits) by more than 30%!

• Keep the following installation clearances: 40mm on top, 20mm on the bottom, 0mm on the left and right sides are recommended when the
device is loaded permanently with more than 50% of the rated power. Increase this clearance to 15mm in case the adjacent device is a heat
source (e.g. another power supply).

SHOCK HAZARD: Do not use the power supply without proper grounding (Protective Earth). Use the terminal on the input

block for earth connection and not one of the screws on the housing.

- Turn power off before working on the device. Protect against inadvertent re-powering

- Make sure that the wiring is correct by following all local and national codes

- Do not modify or repair the unit

- Do not open the unit as high voltages are present inside

- Use caution to prevent any foreign objects from entering the housing

- Do not use in wet locations or in areas where moisture or condensation can be expected

- Do not touch during power-on, and immediately after power-off. Hot surfaces may cause burns.

WARNING: EXPLOSION HAZARDS!

Substitution of components may impair suitability for this environment. Do not disconnect the unit or operate the voltage adjustment or S/P jumper unless
power has been switched off or the area is known to be non-hazardous.

All parameters are specified at 24V, 20A, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.

Rockwell Automation Publication 1606-RM027A-EN-P — April 2014 3

Bulletin 1606 Switched Mode Power Supplies

5. Standby Mode

Input voltage

nom. DC 48V

Voltage range

nom. 48-56Vdc

Input current

typ. 40mA

Power dissipation typ. 1.9W
Status lamp always on
Active signal high ohmic

Ready signal

low ohmic

6. Charging Mode

Charging current

min. 0.3A Charging mode
max. 0.5A Charging mode

Charging time

min. 22s / 17s

Initial charge

1)

/ Re-charging

2)

max. 32s / 25s

Initial charge

1)

/ Re-charging

2)

Status lamp ashes 1.25Hz

Active signal high ohmic

Ready signal

high ohmic

1) Initial charging is the rst charge after voltage is applied to the buer unit.

2) Re-charging is the charging of the internal capacitors after voltage interruptions of less than 2 minutes.

Fig. 6-1 Re-charging time, 48V

Charge

20

0 5 10 30s

Charging Time

40

80

60

100%

15 20 25

m

a

x

m

i

n

4 Rockwell Automation Publication 1606-RM027A-EN-P — April 2014

All parameters are specified at 24V, 20A, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.

Bulletin 1606 Switched Mode Power Supplies

7. Buer Mode

Rated output current nom. 20A
Current limitation min. 20A Electronically limited

Output voltage typ. 45V Jumper in position “45V xed”

typ.

2V below input
voltage

Jumper in position “Vin –2V”

Ripple and noise voltage max.

max. 400mVpp 10A, 20 Hz to 20 MHz, 50Ohm
max. 600mVpp 20A, 20Hz to 20MHz, 50Ohm
may increase below -10°C

250mVpp 5A, 20Hz to 20MHz, 50Ohm

Hold-up time min. 0.1s 45V, 20A
typ. 0.15s 45V, 20A
min. 13.4s 45V, 0.1A
typ. 21s 45V, 0.1A

To increase buer current or extend hold-up time, any given number of buer
units can be installed in parallel.

Activation threshold typ. 45V Jumper in position “45V xed”

Buering starts if terminal voltage falls below 22.5V.

typ. Vin –2V Jumper in position “Vin –2V”

Buering starts if the terminal voltage decreases by
more than 2V. Buering ends when terminal voltage
increases by more than 2V.
Voltage changes slower than 1.1V/s will be ignored
unless the voltage is above 45V. Below 45V
buering starts immediately.

Status lamp

ashes 10Hz

Active signal low ohmic

Ready signal

high ohmic

Fig. 7-1 Hold-up time

0,01 A

0,10 A

1,00 A

10,00 A

100,00 A

0,1 s 1,0 s 10,0 s 100,0 s

Buffe r

Curr ent

typ. ( 45,0 V )

typ. ( 56,0 V )

min . ( 4 5 V )

All parameters are specified at 24V, 20A, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.

Rockwell Automation Publication 1606-RM027A-EN-P — April 2014 5