Rockwell Automation 1606-XLSBUFFER24 User Manual

Reference Manual

1. Description

.........................................,............................. 1

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

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-XLSBUFFER24

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 24V loads

■

Minimum hold-up time 0.2s at 20A

■

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 24V Voltage range 24-28.8V Output voltage 22.5V or

–1V

selectable by

jumper Output current 0 to 20A Hold-up time

min 0.2s 22.5V, 20A

typ 0.31s 22.5V, 20A

min 28s 22.5V, 0.1A

typ 43s

22.5V, 0.1A

Charging current

max 600mA

Charging time

typ 18s

Input current typ 80mA 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 DC24V 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 maintenance-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.

Charge

Discharge

Buffer

Buffer Unit

Buffer

Unit(s)

Power

Supply

Load

3. Catalog Numbers

4. Certication Marks

Buer Unit

1606-XLSBUFFER24

24, 20A, 200ms

Accessory 1606-XLB Wall mounting

bracket

UL 508

UL 60950-1

EMC, LVD

C-Tick

GOST R

2 Rockwell Automation Publication 1606-RM026A-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 aircraft, trains, nuclear equipment or similar systems 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 Mounting.

• 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-RM026A-EN-P — April 2014 3

Bulletin 1606 Switched Mode Power Supplies

5. Standby Mode

Input voltage

nom. DC 24V

Voltage range

nom. 24-28.8Vdc

Input current

typ. 80mA Standby mode Power dissipation typ. 1.9W Status lamp

always on

Active signal

high ohmic

Ready signal

low ohmic

6. Charging Mode

Charging current

min. 0.4A Charging mode

max. 0.6A Charging mode Charging time

min. 20s / 15s

Initial charge

/ Re-charging

max. 29s / 21s

Initial charge

/ Re-charging

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, 24V

Charge

0510 30s

Charging Time

100%

15 20 25

4 Rockwell Automation Publication 1606-RM026A-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. 22.5V Jumper in position “22.5V xed”

typ.

1V below input voltage

Jumper in position “Vin –1V”

Ripple and noise voltage max. 200mVpp 20Hz to 20MHz, 50Ohm Hold-up time min. 0.2s 22.5V, 20A

typ. 0.31s 22.5V, 20A min. 28s 22.5V, 0.1A typ. 43s 22.5V, 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. 22.5V

mper in position “22.5V xed”

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

typ. Vin –1V Jumper in position “Vin –1V”

Buering starts if the terminal voltage decreases by more than 1V. Buering ends when terminal voltage increases by more than 1V Voltage changes slower than 0.54V/s will be ignored unless the voltage is above 22.5V. Below 22.5V buering starts immediately.

Status lamp

ashes 10Hz

Active signal

low ohmic

Ready signal

high ohmic

Fig. 7-1 Hold-up time

0,1 A

1,0 A

10,0 A

100,0 A

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

Buffer

Curr ent

typ. ( 22,5 V )

typ. ( 27,8 V )

min . ( 22 ,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-RM026A-EN-P — April 2014 5

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