Banner LTB Series Optical Touch Buttons are touch-activated photoelec-
tric switches designed to replace capacitive touch switches and mechani-
cal push buttons. The OPTO-TOUCH's SPDT electromechanical relay
output changes state, alternating between "on" and "off", whenever a finger,
introduced into the "touch area" (yoke) of the switch, interrupts the LTB's
infrared sensing beam.
Banner LTBs are ergonomically designed to eliminate the hand, wrist, and
arm stresses associated with mechanical push buttons. They require abso-
lutely no physical pressure to operate. LED indicators light for "power on"
and "output activated".
LTBs are highly resistant to EMI, RFI, and ambient light interference, and are
constructed from black polysulfone (or red Lexan®) and VALOX® for reliabil-
ity in industrial environments. The 30-mm threaded base provides easy
mounting, and LTBs are easily retrofitted to existing machines. See the
listings on pages 2 and 3 for available models.
Printed in USA P/N 28437G4D
LTB Series
OPTO-TOUCH
!
WARNING. Banner OPTO-TOUCH™ L TB Series Optical T ouch Buttons are intended as general-
purpose initiators, and are not safety devices. Like most solid-state devices, they are as equally likely to fail
in the conducting ("on") state as in the non-conducting ("off") state. If OPTO-TOUCH Optical Touch Buttons
are used to initiate machines or operations in which false operation of an Optical Touch Button could be dangerous, point-
of-operation guarding devices or related safety controls must be installed and maintained to meet all appropriate OSHA
regulations and ANSI B11 machine safety standards.
NOTE: In addition to the standards and regulations mentioned above, there are numerous regulations and machine safety
standards that apply to specific industries. For assistance in obtaining copies of any of these standards, contact Banner at
the address and or numbers listed at the bottom of page 4.
Supply Voltage: 105 to 130V ac or 210 to 250V ac, depending upon
model. See listings of available models, pages 2 and 3.
Output Configuration: All models have SPDT electromechanical
relay (one N.O. contact, one N.C. contact).
Output Rating: Maximum voltage is 250V ac or 30V dc.
Maximum current 7 amps (resistive load), 1 HP max.
Minimum load .05 watts (dc), .05VA (ac).
Mechanical life of relay 50,000,000 operations (min.).
Electrical life of relay 100,000 operations (min.) at full resistive load.
Transient suppression is recommended when switching inductive loads.
Ambient Light Immunity: 120,000 lux (direct sunlight).
EMI/RFI Immunity: The OPTO-TOUCH is highly resistant to
both single and mixed EMI and RFI noise sources.
Operating Temperature Range: -20 to +50°C (-4 to +122°F).
Indicator LEDs: Two indicator LEDs. One lights when power is
"on"; the other lights when the infrared sensing beam is interrupted.
Construction:
Black polysulfone or red Lexan® upper housing and fiber-reinforced
VALOX® base. Electronics fully epoxy-encapsulated. Totally sealed,
non-metallic enclosure. The LTB's threaded base has M30 x 1,5
external threads and 1/2" NPSM internal threads. The base requires
a 1-3/16" diameter mounting hole (fits most standard automotive-size
"jumbo" legend plates and oiltight pushbutton holes). OPTO-TOUCH
LTBs are rated NEMA 1, 3, 4, 4X, 12, and 13.
Specifications
Alternate Action Optical Touch Buttons
Cable: Quick-disconnect (QD) models require model MBCC-512
5- conductor mini-type cable (p/n 25496), purchased separately. QD
cables are 12 feet long. Models with attached cable (non-QD models)
are supplied with 6 feet of PVC-jacketed, 22 AWG 5-conductor cable.
Environmental Considerations (models with polysulfone housing):
Prolonged exposure of the OPTO-TOUCH to direct outdoor sunlight
will cause embrittlement of the polysulfone housing. Window glass
effectively filters longer wavelength ultraviolet and provides excel-
lent protection from sunlight. Contact the factory Application Engi-
neering Department regarding outdoor applications. Clean periodi-
cally using a mild soap solution and a soft cloth. Avoid the following
substances, as they will attack polysulfone to varying degrees: esters,
ketones, aromatic hydrocarbons, chlorinated hydrocarbons, and strong
alkaline materials.
Environmental Considerations (models with Lexan® housing):
Prolonged exposure of the OPTO-TOUCH to hot water and moist
high-temperature environments above 150°F (66°C) should be
avoided. Aromatic hydrocarbons (such as xylene and toluene),
halogenated hydrocarbons, and strong alkalis should be avoided.
Clean periodically using mild soap solution and a soft cloth.
LTB Series Alternate Action
Optical Touch Button (QD model shown)
E71083
LR41887-24
!
Read all WARNINGs carefully.
Model Listing and Hookup Information
(all models have SPDT electromechanical relay output)
Models* Operating voltage, cabling
LTBA5(L) 120V ac, 6-foot attached cable
LTBA5(L)QD 120V ac, 5-pin quick-disconnect base
LTBB5(L) 240V ac, 6-foot attached cable
LTBB5(L)QD 240V ac, 5-pin quick-disconnect base
2
The model SMB30S swivel-mount bracket (p/n 33204) is a
versatile means for mounting a Banner OPTO-TOUCH Optical
Touch Button. The SMB30S lets you ergonomically position
the OPTO-TOUCH on most machinery for maximum operator
comfort and convenience.
The SMB30S mounts by its base. Its swivel ball locks snugly
in place when its two clamping bolts are tightened. Bracket
material is black VALOX®. Hardware is stainless steel, and
mounting bolts are included.
The photo at the right shows a model SMB30S bracket with an
OPTO-TOUCH attached.
WARNING!
Never use an OPTO-TOUCH Optical Touch Button as an actuator in an emergency stop
(E-Stop) circuit. E-Stop actuators must be purely mechanical devices that require no power to
operate. OPTO-TOUCH Optical Touch Buttons require power to operate and must not be used
as E-Stop actuators under any circumstances.
!
SMB30S
Model SMB30S Swivel Mount Bracket
The OPTO-TOUCH has a 30 millimeter threaded base which fits
directly into a standard mounting hole for an oiltight push button. A
lock ring, supplied with each OPTO-TOUCH, may be used to prevent
switch rotation.
The mounting hole details shown at the right are used for the OPTO-
TOUCH and also for standard oiltight push buttons and their legend
plates. The drawing at the far right shows how to approximate the
keyway using a drill hole.
OPTO-TOUCH LTB Mounting Hole Information
LTB base,
quick-disconnect
models,
side and
end views:
Quick Disconnect (QD) Option
(order model MBCC-512 mini-type cable, 12-foot length, p/n 25496)
Cable connector, end view Cable connector, side view
(MBCC-512 cable): (MBCC-512 cable):
*"L" in model suffix indicates Lexan® upper housing. See listing, page 3.
LTB Series Alternate Action OPTO-T OUCH
105 to 130V ac (LTBA5 models)
210 to 250V ac (LTBB5 models)
LTBA5
LTBA5QD
LTBA5L
LTBA5LQD
LTBB5
LTBB5QD
LTBB5L
LTBB5LQD
28455
28456
34950
35010
28457
28458
34951
35118
35119
35120
35121
35122
35123
35124
35125
35126
35127
35128
35129
35130
35131
35132
35133
35134
35135
35136
35137
35138
35139
35140
35141
35142
220/240V ac
Attached 6-foot cable
Quick disconnect
Lexan®
upper housing
120V ac
••
••
••••
••
OPTO-TOUCH Optical Touch Buttons
Part Numbers - Alternate Action Models
Model
Black
Cover Red
Cover Yellow
Cover Green
Cover
Polysulfone
upper housing
OPTO-T OUCH Field Covers
!
Model shown has built-in, attached cable.
See page 2 for QD-style base.
3
A field cover has been supplied with this OTB. It should be installed, as shown in the drawing above, to minimize the
possibility of unintended switch operation. If this cover is missing or has become lost or damaged, contact Banner
immediately at (612) 544-3164 for a no-charge replacement.
Safety Instruction
OPTO-TOUCH Field Covers (see drawing, below) are designed to
prevent inadvertent activation of OPTO-TOUCHs due to objects (loose
clothing, debris, etc.) which might accidentally block the sensing beam.
Field covers are constructed of rugged polycarbonate-PET polyester blend,
which is capable of absorbing high impacts, even at low temperatures. This
material is highly resistant to abrasion and to damage by most chemicals.
Every OPTO-TOUCH is supplied with a black field cover, as standard.
Field covers are available separately in four colors, which can be used to
differentiate touch button functions when several touch buttons are in
use:
Black OTC-1-BK, p/n 30221 Yellow OTC-1-YW, p/n 30978
Red OTC-1-RD, p/n 30977 Green OTC-1-GN, p/n 30979
Lexan® and VALOX® are registered trademarks of General Electric Company.
Dimensions
LTB Series Alternate Action OPTO-T OUCH
NOTE: Banner Optical Touch Buttons are manufactured and sold under license for U. S Patent #4,939,358.
Ordering Information: OPTO-T OUCH Optical T ouch Buttons are shipped with a black field cover , as standard. A black field cover
will be received if the OPTO-TOUCH is ordered by its model number (only). Red, yellow, or green field cover may be specified instead by
ordering the OPTO-T OUCH using the appropriate 5-digit part number from the table, below . Field covers may also be ordered separately (above).
WARRANTY: Banner Engineering Corporation warrants its products to be free from defects for one year. Banner Engineering Corporation will repair or replace,
free of charge, any product of its manufacture found to be defective at the time it is returned to the factory during the warranty period. This warranty does not
cover damage or liability for the improper application of Banner products. This warranty is in lieu of any other warranty either expressed or implied.
Banner Engineering Corp. 9714 10th Avenue No., Minneapolis, MN 55441 Telephone: (612) 544-3164 FAX (applications): (612) 544-3573