OPTO-TOUCH OTB Series Optical Touch Button Datasheet Momentary Action Optical Touch Buttons Zero-force touch-activated photoelectric replacements for mechanical push buttons Momentary-action touch buttons with SPDT electromechanical relay or solid-state outputs Optimized for easy mounting with a 30 mm threaded base Ergonomic design eliminates hand, wrist and arm stress Field covers included to prevent inadvertent activation from loose clothing, debris, etc. Banner Optical Touch Buttons are manufactured and sold under license for U. S Patent 4,939,358. WARNING: Banner OPTO-TOUCH OTB and OTBL Series Optical Touch 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 (o) 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. Models 1 2 Model Voltage Output Connection OTBVN6 6-foot attached cable Complementary NPN (sinking) outputs OTBVN6QD 4- pin quick-disconnect 10 to 30 V dc OTBVP6 6-foot attached cable Complementary PNP (sourcing) outputs OTBVP6QD 4-pin quick-disconnect OTBA5 6-foot attached cable 120 V ac OTBA5QD 5-pin quick-disconnect OTBB5 6-foot attached cable 220/240 V ac SPDT electromechanical relay output OTBB5QD 5-pin quick-disconnect OTBVR81 6-foot attached cable 3 20 to 30 V ac or dc OTBVR81QD 5-pin quick-disconnect Overview Banner Optical Touch Buttons are touch-activated photoelectric switches designed to replace capacitive touch switches and mechanical push buttons. The OPTO-TOUCH s SPDT electromechanical relay or solid-state output (depending upon model) is activated for as long as a finger, introduced into thetouch are (yoke) of the switch, interrupts the OPTO-TOUCH s infrared sensing beam. Banner Optical Touch Buttons are ergonomically designed to eliminate the hand, wrist, and arm stresses associated with mechanical push buttons. They require absolutely no physical pressure to operate. LED indicators light forpower o andoutput activate. All models are highly resistant to EMI, RFI, and ambient light interference. OTBs have either a black polysulfone (or red polycarbonate) upper housing and fiber-reinforced thermoplastic polyester base. Polycarbonate models have the letter in their model number suffix. Environmental considerations for use of the two types differ see specifications below. The 30- mm threaded base on all models provides easy mounting, and Banner Optical Touch Buttons are easily retrofitted to existing machines. 1 To order a model with polycarbonate upper housing (others are polysulfone), added suffix to the model number. For example, OTBVN6L. 2 Models with a quick disconnect require a mating cordset. 3 20 to 30 V dc power may be applied without regard to polarity. Original Document 24 April 2017 28436 Rev. J 28436 OPTO-TOUCH OTB Series Optical Touch Button Important Application Information Safety Instruction : A field cover is supplied with this OPTO-TOUCH. Install the cover, as shown in the drawing page 1, to minimize the possibility of unintended switch operation. If this cover is missing or has become lost or damaged, contact Banner Engineering immediately for a no-charge replacement. Use of OPTO-TOUCH Optical Touch Buttons for Two-hand Machine Trip Controls Requirements for Anti-Tiedown Circuitry Two-hand trip control has been a popular means for actuation of single-stroke presses and other single-cycle machinery for many years. Optical touch buttons (OTBs) provide an ergonomic (stress-free) alternative to conventional mechanical push buttons used as actuators in two-hand trip controls. OSHA Requirement for Anti-Tiedown Control Use of OTBs for two-hand trip machine actuation must includeanti-tiedow control to prevent OTB 1 OTB 2 any means of defeating one or both actuators to create a one-hand trip. Federal law mandates the use of anti-tiedown control when two-hand trip actuators are used for cycle initiation of a single stroke part revolution clutched mechanical power press. OSHA Code of Federal Regulation, 7-1-92 Edition, CFR Title 29, Part 1910.217 (b) (6) (i) states:A two-hand trip shall have the individual operators hand controls protected against unintentional operation and have the individual operators hand controls arranged by design and construction and/or separation to require the use of both hands to trip the press and use a control arrangement requiring concurrent operation of the individual operators hand controls Anti-Tiedown Logic Module Concurrent orsynchronou actuation of two-hand trips is the most popular approach to anti- tiedown control. European Standard prEN 574, titledSafety of Machinery - Two-handed Control Run command to Devic, defines synchronous actuation as follows: machine control circuit6.7 Synchronous actuations In synchronous actuation an output signal shall be generated only when both control actuating devices are actuated - in a time which is less than or equal to 0.5 seconds.... If the control actuating devices are not actuated synchronously the output signal shall be prevented and it shall be necessary to release both control actuating devices and to reinitiate both input signals WARNING: In the United States, the functions that a two-hand control device is intended to perform are regulated by the Occupational Safety and Health Administration (OSHA). Whether or not any particular two-hand control system installation meets all applicable OSHA requirements depends upon the details of how the two-hand control device is applied, installed, operated, and maintained. WARNING: Point-of-Operation Guarding When properly installed, a two-hand control device provides protection only for the hands of the machine operator. It may be necessary to install additional safeguarding, such as safety light screens, additional two-hand controls, and/or hard guards, to protect all individuals from hazardous machinery. Failure to properly guard hazardous machinery can result in a dangerous condition which could lead to serious injury or death. 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. OPTOTOUCH Optical Touch Buttons require power to operate and must not be used as E-Stop actuators under any circumstances. Note: In addition to the standards and regulations mentioned in this section, 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 Engineering. Prevention of False Actuation Any anti-tiedown control must be designed to prevent accidental actuation. Anti-tiedown circutry must be designed to ignore false input signals. False signals include (but are not limited to) voltage transients, contact bounce, and EMI or RFI noise. If a PLC or any other solid-state controller is used to provide anti-tiedown, the design must assure that short duration signals (typically any signals less than a few milliseconds) are ignored. There are several manufacturers of anti-tiedown logic modules which include circuitry to minimize the possibility of false actuation. Definitions: 2 www.bannerengineering.com - Tel: +1-763-544-3164 P/N 28436 Rev. J