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Release 7/2009 Ver. 1.0
1.0
GENERAL DESCRIPTION
The BSRUA-2 interface unit is designed to be
incorporated into the user's machine control system. It
interfaces either one or two GS-120 light curtains with
the protected machine's controls.
2.0
OPERATIONAL SEQUENCE AND LED
STATUS DESCRIPTION
2.1
CONFIGURED FOR ONE LIGHT CURTAIN
When power is first applied to the light curtain system:
•
Two amber LEDs on the BSRUA-2 Controller should
illuminate, indicating that the control unit has power
(system status LEDs for channel 1 & channel 2).
•
Power is automatically applied to the emitter and
receiver units and, if the system is properly connected
and aligned (see the following wiring information), and
the light curtain is clear with no faults, the BSRUA-2
controller should have two green LEDs illuminated.
These LEDs indicate that the output status (for channel
1 and channel 2) is "on" and the redundant output safety
relays are in the "on" state or closed. The outputs will
remain closed until an obstruction or fault occurs in the
light curtain. When the light curtain is obstructed, both
red LEDs will illuminate and flash. These LEDs indicate
that the output status (channel 1 and channel 2) is "off"
and the redundant output safety relays are in the "off"
state or opened.
The outputs will remain opened until the light curtain is
clear. The outputs follow the state of the light curtain
and reset AUTOMATICALLY without any operator
intervention.
It is important to note the BSRUA-2
controller does not distinguish between a light curtain
fault, obstruction, misalignment, or wiring error. All of
these conditions cause the BSRUA-2 to respond as if
the light curtain is obstructed and the redundant safety
outputs will be in the "off" state (opened).
2.2.
CONFIGURED FOR TWO LIGHT CURTAINS
When power is first applied to the light curtain system:
• Two amber LEDs on the BSRUA-2 Controller should
illuminate indicating that the control unit has power
(system status LEDs for channel 1 and channel 2).
• Power is automatically applied to the emitters and
receivers on both light curtains, and, if the system is
properly connected and aligned (see the following wiring
TAPESWITCH CORPORATION
100 Schmitt Boulevard
Farmingdale, New York 11735
APPENDIX B – BSRUA-2 INTERFACE UNIT
Technical Manual: GS-120 Light Curtain Systems
information), and the light curtains are clear with no
faults, the BSRSUA-2 Controller should have two green
LEDs illuminated.
status (for channel 1 and channel 2) is "on" and the
redundant output safety relays are in the "on" state or
closed.
The outputs will remain closed until an
obstruction or fault occurs in either of the two light
curtains.
When a light curtain is obstructed, the
corresponding red LED will illuminate and flash. These
LEDs indicate the output status (both redundant safety
outputs are "off"), and also identify which light curtain
(emitter 1/receiver 1 or emitter 2/receiver 2) has been
obstructed. Channel 1 flashing red indicates that light
curtain one has been obstructed, and channel 2 flashing
red indicates that light curtain two has been obstructed.
For the light curtain which is unobstructed, the green
output status LED will remain steadily lit.
It is important to note that although a green LED status
indicator may be illuminated, the redundant safety
outputs may actually be off as a result of the other light
curtain being obstructed. The LEDs are designed to
assist the user determine which light curtain has caused
the output to go to the off state.
The outputs will remain opened until both light curtains
are clear. The outputs follow the states of the light
curtains and reset AUTOMATICALLY without any
operator intervention.
BSRUA-2 does not distinguish between a light curtain
fault, obstruction, misalignment, or wiring error. All of
these conditions cause the BSRUA-2 to respond as if a
light curtain is obstructed, and the redundant safety
outputs will be in the "off" state (opened).
3.0
MECHANICAL INFORMATION
Figure 51 shows the case size and mounting
dimensions of the BSRUA-2 interface unit. All
dimensions are in millimeters.
mounted in an enclosure rated for the known operating
environment. In most cases, the unit will fit into an
existing machine's control unit panel. The unit snaps
onto a common electrical mounting rail, style DIN EN 50
022-35.
49
These LEDs indicate the output
It is important to note the
The unit must be
Phone: 631-630-0442
Fax: 631-630-0454
www.tapeswitch.com
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