Banner DUO-TOUCH Run Bar with STB Buttons - Manual (Page 3)

STB Series Touch Button LED Indicators
Output, Fault (green) Steady ON when button is activated
OFF when button is not activated
Flashing when a fault condition is detected
Applications
The DUO-TOUCH Run Bar is intended for use as the initiation device in a two-hand control system for most powered
machinery, when machine cycling is controlled by an individual.
The two-hand control system makes the operator a “hostage” while the hazard is present, thus limiting or preventing
exposure of that operator to the hazard. The two-hand control actuators must be located in a way that hazardous motion
is completed or stopped before the operator can release one or both of the buttons and reach the hazard (see Separation
Distance).
Two-hand control systems must meet requirements found in several U.S. and international standards. See the machine-
specific standard (e.g., “C-level” in ISO/EN standards), ANSI NFPA 79, IEC 60204-1, ANSI B11.19, and ISO 13851 (EN
574) for complete information. Some of the requirements are:
• Simultaneous use of both hands (“synchronous action”): both buttons must be actuated within 500 ms of one
another, even under single-fault conditions. Whenever this time is exceeded, both actuating devices must be
released. This requirement reduces the possibility of intentional defeat and unintended initiation.
• Continuous actuation of both buttons during the hazardous situation. Releasing one or both buttons must cause the
ceasing of the hazardous situation, and before the machine cycle can continue, both buttons must be released.
• When used in single-cycle or single-stroke mode, the machine control must provide an anti-repeat feature so that
the operator must release the two-hand control actuators after each machine cycle, before a new cycle can be
initiated.
• The actuating devices must be protected from accidental or unintended operation.
• When used for safeguarding, the interfacing must be at an appropriate level of safety circuit integrity as
determined by a risk assessment. In the U.S., the required level of integration is Control Reliability (see ANSI
B11.19). In many situations governed by ISO/IEC and EN regulations, the required integration for Type IIIC per
ISO 13851 (EN 574) is Category 4 per ISO 13849-1 (EN 954-1).
To assist in complying with these requirements, Banner Engineering recommends interfacing the STB buttons of the run
bar with a DUO-TOUCH SG Two-Hand Control Module, such as the model AT-FM-10K, AT-..M-13A, or AT-..M-11KM, or
other Type IIIC-compliant two-hand control system.
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.
CAUTION: Hand Controls
The environment in which hand controls are installed must not adversely affect the means of
actuation. Severe contamination or other environmental influences may cause slow response or false
On conditions of mechanical or ergonomic buttons. This may result in exposure to a hazard.
DUO-TOUCH Run Bar with STB Buttons
Datasheet 131634_web Rev.
E
www.bannerengineering.com - tel: 763-544-3164 3