Tapeswitch GS-120 Technical Manual page 44

Release 7/2009 Ver. 1.0
Figure 46 - BSRSA Interface Unit Internal View
4.0 ELECTRICAL CONNECTIONS
The BSRSA interface unit has four internal terminal
strips, designated X1, X2, X6, and X7. Each connection
point is mechanically suitable for (1) 2.5mm
wire. Crimped ferrules or tinning must be used on all
stranded wires. Figure 47 shows the system block
diagram for the BSRSA controller.
W1
Power BSRSA
Input Controller
W2
Figure 47 - BSRSA System Block Diagram
Terminal X7 is for AC input power. Terminal X6 is for
the +24 Vdc power input. All connections between the
BSRSA interface unit and the GS-120 light curtain
emitter and receiver units are made at terminal X2. All
connections between the BSRSA interface unit and the
machine's control are made at terminal X1. Figure 48
show details of the connections for the power, output,
and reset functions.
TAPESWITCH CORPORATION
100 Schmitt Boulevard
Farmingdale, New York 11735
The interconnection diagram (Figure 49) and the wire
run list (WRL) (Figure 50) show the proper terminal
numbers and associated functions for the cabling
between the GS-120 emitter and receiver units and the
BSRSA interface unit. Be sure to observe the color
coding shown to assure proper operation.
The cables for the interface between the GS-120 emitter
and receiver units and the BSRSA unit are not included
with the light curtain and must be ordered separately.
The emitter cable has five conductors in an insulated
jacket. The receiver cable has eight conductors in an
insulated jacket. The cables have different connectors
and will only mate to the proper component of the light
curtain.
The metal enclosure has four double knockouts capable
of accepting standard ½" or ¾" conduit fittings. It is
recommended that any high voltage connection to the
BSRSA control unit be made with suitable cabling
and/or conduit protections. The connections between
the BSRSA and the GS-120 emitter and receiver units
, 14 AWG
2
are non-hazardous, low-voltage signals and additional
protection of these cables is not necessary.
recommended that suitable fittings or cable grips be
used to maintain the moisture integrity of the installation.
It is strongly recommended that the low-voltage
connections be separated from the high-voltage
connections. Local electrical codes should be
observed.
5.0
The BSRSA is equipped with four fuses, F1, F2, F3, and
Safety Outputs F4. See Figure 46 for the location of these fuses. Fuse
to Machine Controls
F1 is a 500 mA, 250 Vac slow-blow type, and is
intended to protect from potential shorts and surges on
the high voltage side of the interface unit. Fuse F2 is a
1.2 A, 250 Vac quick-blow type and is intended to
protect from potential shorts in the low voltage, 24 Vdc,
circuitry of the interface unit. Fuses F3 and F4 are
output protection fuses. These fuses are 3.15 A, 250
Vac slow-blow types, and protect the safety output relay
contacts from welding due to current surges or excess
loading. Care should be taken to replace any fuses with
the correct rating. While replacing any fuses, particular
attention should be given to the fuse holder. Excess
stress on the fuse holders during replacement can lead
to intermittent connections, which may cause nuisance
tripping and/or a nuisance lock-out condition.
44
Technical Manual: GS-120 Light Curtain Systems
FUSES
It is
Phone: 631-630-0442
Fax: 631-630-0454
www.tapeswitch.com