Maxi-beam, Power blocks and wiring base, And 4-wire operation – Banner MAXI-BEAM Series User Manual

Page 10: Wire operation, Rpbb-1, Rpba-1, R2pba, R2pbb, Rpbb, Rpbr2

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RPBB-1

For RSBE, RSBESR, and RSBEF emitters

INPUT: 210 to 250V ac, 50/60Hz; 2 watts.

RPBA-1

For RSBE, RSBESR, and RSBEF emitters

INPUT: 105 to 130V ac, 50/60Hz; 2 watts.

R2PBA

INPUT: 105 to 130V ac, 50/60Hz; 2 watts exclusive of
load

R2PBB

INPUT: 210 to 250V ac, 50/60Hz; 2 watts exclusive of
load.

Connections

Functional Schematic

Power block models RPBA and RPBB are the most commonly used for ac MAXI-BEAM
operation. As the typical hookup shows, they are intended to switch the same ac voltage as is used
to power the MAXI-BEAM. However, both can switch any ac voltage that is lower than the
supply voltage, as long as both ac circuits share a common neutral. Observe local codes whenever
mixing ac voltages in a common wiring chamber.

These blocks are designed to handle the inrush current of ac inductive loads like motor starters
and solenoids. There is no mimimum load requirement, and they will interface directly to inputs
of all ac programmable logic controllers (PLCs). Special order models RPBAT (120V ac) and
RPBBT (240V ac) are available for interfacing to dc loads of up to 100 milliamps.

3- and 4-wire operation

RPBB

OUTPUT: SPST solid-state switch for ac, 3/4 amp
maximum (derated to 1/2 amp at 70 degrees C). Maxi-
mum inrush 10 amps for one second or 30 amps for one
ac cycle (non-repeating). On-state voltage drop of less
than 2.5V ac at full load. Off-state leakage current less
than 100 microamps.

NOTE: ac loads require up to 8.3 milliseconds to turn
OFF in addition to the response time of the sensor head
and delay logic (if any).

RPBR2 is an SPDT output version of model RPBR, with both contacts common to terminal #1. Terminal
#3 is normally open; terminal #4 is normally closed. See application caution, page 9.

2-wire operation

OUTPUT: SPST solid-state switch for ac, 3/4 amp
maximum (derated to 1/2 amp at 70 degrees C). Maxi-
mum inrush 10 amps for one second (non-repeating).

On-state voltage drop: 5.2V rms at a 1/2 amp load;
14V rms at a load of 10 milliamps.

Off-state leakage current less than 1.7 milliamp (re-
sistive or inductive load).

Power block models R2PBA and R2PBB both offer the simplicity of wiring which is
associated with 2-wire sensor design. They wire directly in series with an ac load, exactly
like a limit switch. Use of a 2-wire power block requires programming of the sensor head
to the "2W" (2-wire) operating mode. As a result, MAXI-BEAM sensing response time is
fixed at 10 milliseconds for 2-wire operation. There are some hookup considerations which
are unique to 2-wire interfaces. See hookup information on page 12 for details.

INPUT: 12 to 30V dc, 40mA, exclusive of load current
(at 30V dc); or 12 to 250V ac, 50/60Hz.

OUTPUT: SPDT electromechanical relay contacts.
Contact rating: 250V ac max., 30V dc max., 5 amps
max. (resistive load); install MOV across contact if
switching inductive load. Contact response: 20ms
open and close (NOTE: add to sensor head response).
Mechanical life: 10,000,000 operations.

OPERATING TEMPERATURE: -40 to +50 de-
grees C (-40 to +122 degrees F).

RPBR2

INPUT: 105 to 130V ac, 50/60Hz; 2 watts exclusive of
load.

RPBA

INPUT: 210 to 250V ac, 50/60Hz; 2 watts exclusive of
load.

10

MAXI-BEAM

Power Blocks and Wiring Base

4

3

2

1

RPBA: 105 to 130V ac

RPBB: 210 to 250V ac

Supply

Voltage

LOAD

Jumper

4

3

2

1

RPBA-1: 105 to 130V ac

RPBB-1: 210 to 250V ac

Supply

Voltage

4

3

2

1

R2PBA: 105 to 130V ac

R2PBB: 210 to 250V ac

Supply

Voltage

LOAD

AC Models

RPBA

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