Banner MAXI-BEAM Series - Manual (Page 11)

4
3
1
2
V ac
(See Specifications)
L 1
2
L
RPBA
RPBB
Hookup
typical
for all
8 inputs
AC "hot" AC neutral
I
N
P
U
T
S
P
r
o
g.
C
t
r
l.
neutral
1
2
3
4
5
6
7
8
CAUTION: the output switch will be destroyed if the load is shorted.
Any number of "hard" contacts may
be wired in series or in parallel to
MAXI-BEAMs which use power
block model RPBA or RPBB.
This circuit illustrates a start-stop
function in which CR can be ener-
gized only when the MAXI-BEAM
output is energized. Once energized,
CR is latched ON by its normally
open contact. CR is reset by de-
pressing the STOP switch
AC voltage is connected to terminals
#1 and #2 to provide power to the
MAXI-BEAM. The solid-state out-
put switch behaves as if there were a
contact between terminals #3 and #4.
L1 is most conveniently applied to
terminal #3 by jumpering terminals
#1 and #3 inside the wiring base.
Alternatively, the load could be in-
stalled between terminal #3 and L1,
with L2 connected to terminal #4 by
jumpering from #2 to #4.
Hookup of an ac Emitter
MAXI-BEAMs which use RPBA or RPBB power blocks may be wired in series
for the "AND" logic function. The total voltage drop across the series will be the
sum of the individual voltage drops across each power block (approximately 3
volts per block). With most loads, 10 or more sensors may be wired together in
series.
4
3
1
2
V ac
(See Specifications)
L 1
2
L
RPBA-1
RPBB-1
STOP
4
3
1
2
V ac
(See Specifications)
L 1
2
L
RPBA
RPBB
CR
START
CR
4
3
1
2
LOAD
V ac
(See Specifications)
L 1
2
L
RPBA
RPBB
4
3
1
2
RPBA
RPBB
4
3
1
2
4
3
1
2
LOAD
RPBA
RPBB
V ac
(See Specifications)
L 1
2
L
RPBA
RPBB
4
3
1
2
LOAD
V ac
(See Specifications)
L 1
2
L
RPBA
RPBB
Hookup to a Simple Load
Interfacing to a PLC I/O is direct with MAXI-BEAMs which use RPBA or
RPBB. The off-state leakage current is only 100 microamps (0.1 milliamp)
maximum.
Any number of MAXI-BEAMs
using RPBA or RPBB power
blocks may be wired together in
parallel to a load. Parallel sensor
connection is usually used to yield
"OR" logic (i.e.-if an event occurs
at any sensor, the load is ener-
gized).
The total off-state leakage current
through the load is the sum of the
leakage currents of the individual
power blocks. However, the maxi-
mum leakage current of MAXI-
BEAM RPBA or RPBB power
blocks is only 100 microamps. As
a result, the installation of an artifi-
cial load resistor in parallel with the
load is necessary only for very
large numbers of sensors wired in
parallel to a light (i.e.-high imped-
ance) load.
Hookup in Series with other MAXI-BEAMs
Hookup in Parallel or Series with Contacts or Switches Hookup to Programmable Logic Controller (PLC)
Hookup in Parallel with other MAXI-BEAMs
MAXI-BEAM emitter-only
sebnsor heads use ac power
block model RPBA-1 (120V
ac) or RPBB-1 (220/240V
ac) which connect directly
across the line, as shown.
MAXI-BEAM
Power Blocks and Wiring Base
Hookup Diagrams for RPBA, RPBA-1, RPBB, & RPBB-1 Power Blocks
11