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Datasheet

MULTI-BEAM 2-wire ac power block for MULTI-BEAM 2-wire modular photoelectric sensors

Figure 1. Model 2PBB

MULTI-BEAM 2-wire power block models 2PBA, 2PBB, and 2PBD contain a low

voltage power supply that uses a unique circuit to take a very small leakage current

through the load and convert it to the dc power required to run the scanner block

and logic module.

These power blocks also contain a solid-state switch that operates the load, and a

transient suppression circuit to prevent false operation from high voltage spikes on

the incoming line.

These power blocks are completely solid-state for unlimited operating life. Model

2PBR is a 4-wire power block that works with 2-wire scanner blocks and logic

modules and offers an SPST "hard" contact for switching heavy ac or dc loads.

NOTE: MULTI-BEAM 2-wire AC power blocks are color-coded

black.

Models

Operating

Voltage

Outputs Specifications Certifications

2PBA

105 to 130 V ac;

50/60 Hz

SPST solid-state switch, 3/4 amp

maximum (derated to 1/2 amp at

70 °C). 10 amps maximum inrush

for 1 second (non-repeating).

On-State Voltage Drop: Less than 10 V

Leakage Current: Less than 1 mA (resistive or

inductive loads)

2PBB

210 to 250 V ac;

50/60 Hz

2PBD

22 to 28 V ac;

50/60 Hz

N/A

2PBR

105 to 130 V ac;

50/60 Hz

SPST electromechanical relay

contact.

Contact Rating: 250 V ac max, 30 V dc max, 5

amps max (resistive load); install MOV across

contact if switching an ac inductive load.

Closure time: 20 ms

Release time: 20 ms

Maximum Switching Speed: 20 operations/

second

Mechanical Life: 10,000,000 operations

N/A

Wiring Diagrams

2PBA, 2PBB, and 2PBD Power Blocks

MULTI-BEAM 2-wire power blocks offer the ultimate in simplicity of sensor wiring. They wire directly in series with an ac

load, exactly like a limit switch. Response time of 2-wire power blocks is determined by the scanner block, whose response

time is 10 ms on/off. A built-in false pulse protection circuit holds the output OFF for 10 ms after power is initially applied

to the power block. MULTI-BEAM 2-wire power blocks will operate from –40 to 70 °C (–40 to 158 °F). Resistive loads must

be less than 15,000 ohms and inductive loads must be greater than 1.2 watts (10 mA).

NOTE: Output has a maximum load capacity of 3/4 A, a maximum resistive load of 15 kOhms, and a

minimum inductive load of 1.2 watts (10 mA).

MULTI-BEAM 2-Wire AC Power Block

Modules

Original Document

03508 Rev. A

14 March 2014

03508

1 2 3 4

Datasheet 1

Résumé du contenu

Page 1 - Datasheet

DatasheetMULTI-BEAM 2-wire ac power block for MULTI-BEAM 2-wire modular photoelectric sensorsFigure 1. Model 2PBBMULTI-BEAM 2-wire power block models

Page 2

Transient& DVDTSuppressionSwitchingRegulatedPower Supply21LoadAC SupplyVoltageSolid-StateContactSwitchingElementDriveCircuitACD+−+8 V dcCommonNo C

Page 3

L1L2V ac(See specifications)Load1 22PBA2PBB2PBDFigure 5. 2-Wire MULTI-BEAM with Series ContactsL1L2V ac(See specifications)Load1 22PBA2PBB2PBDFigure 6

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2PBR Power BlocksL1L2V ac1 23 4LoadV ac/dcFigure 9. ConnectionsRegulatedPower Supply21AC SupplyVoltageDriveCircuitACD+−+6 V dcCommonNo ConnectionBSign