UltraTouch
Configuration
The UltraTouch dual dissimilar sensor ergonomic palm switch is
configured in the following manner:
The U-shaped sensors actuation
channel provides a triggering point for the machine operators hand. This
is where the invisible infrared light beam is located and is crossing
the channel. There is also a unique U-shaped location sensor mounted on
the inside of the UltraTouch enclosure that hugs the sensor channel
and is insulated by the enclosure itself. When the machine operator inserts
their hand into the sensors actuation tunnel, both the infrared sensor
and the location sensor must be satisfied in order to energize an electromechanical
relay to send a cycle start signal to the machine. Both individual sensors
within each module are time interlocked, and if both sensors are not triggered
concurrently by the operators hand, the UltraTouch output will
be inhibited to the machine control. The module also contains two visible
LED indicators which informs the status of the UltraTouch module
to the operator. A green LED indicates that the relay contacts are closed,
both sensors have been activated and no failures have been detected. The
red LED indicates that the relay contacts are open and no satisfactory
conditions were detected on both sensors. This advanced patented UltraTouch
design is not available on any competitive units and gives the UltraTouch
user an unparalleled level of safety when using ergonomic zero force actuation
devices. Additionally, the operator will be activating the machine properly
by using the correct ergonomic hand position of neutral, 0° deviation
and 100% hand power.
Easy to Install
UltraTouch installs with ease and comes with complete installation
instructions. Simple module design permits direct exchange for existing
spring loaded mechanical palm buttons and even utilize the existing screw
holes on the run bar. All systems have normally open (NO) and normally
closed (NC) contacts, and are also available in a four (4) pole wiring
configuration depending on the machine control requirements. The ultimate
in versatility!
New installations
and retrofit projects are completely installed in minutes by a qualified
electrician. Also supplied is a toll free 800 number if any questions
should arise by your installation personnel.
UltraSafe Design
Each UltraTouch switch module incorporates the following safety
design features:
- Two dissimilar
sensors
- Infrared
sensor
- Positive
location sensor
- Redundant
circuitry
- Chatter
free design circuit
- Anti-noise
circuit
- No false
trip on power up circuit
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- Captive
contact safety relays
- Operator
status indicators
- Interlock
circuit between the diverse sensors
- Immune
to EMI and RFI noise
- Immune
to weld field interference
- Control
reliable design
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OSHA, ANSI CSA
Standards
The mounting locations of UltraTouch must conform to all State,
Province and Federal codes and all regulations pertaining to the subject
machine on which the UltraTouch is to be applied.
Point of Operation
Guarding
The UltraTouch System is a machine cycle initiation component that
is designed to be a two-hand control device for the machine operator.
If a point of operation guarding device is desired or required, please
contact your local Pinnacle distributor or the factory for devices to
comply with ANSI B11.1 or the various OSHA regulations.
(Below standards
are only partial)
American National Standard B11.19-1990
4.2.4.2.3
Two-Hand Control Devices.
The two-hand control shall be designed to protect each hand control against
accidental or unintentional operation.
The two-hand control shall have the individual operator's hand controls
arranged by design, construction, or separation to require the use of
both hands to cycle the machine tool.
The two-hand control shall be designed to require concurrent operation
of both the operator's hand controls to cycle the machine tool.
If more than one operator is to be safeguarded by the use of two-hand
controls, each operator shall have individual operator's hand controls.
The selection of the operator's controls shall be capable of being supervised
by the employer. Additionally, each selected two-hand control shall be
concurrently operated before the machine tool is cycled. The two-hand
control system shall be designed and constructed so as to prevent cycling
of the machine tool if all the operator's stations are deselected.
The two-hand control shall be designed to require the release of all selected
operator's hand controls and the reactuation of all operator's controls
before a machine cycle can be initiated.
4.2.4.3 Operation
4.2.4.3.1 It shall be the responsibility of the employer to ensure that
the two-hand operating lever, trip, or control device is installed, operated,
and maintained in accordance with this standard.
4.2.4.3.2 The device shall be located at a distance from the nearest hazard
such that the operator cannot reach the hazard with a hand or other body
part before cessation of motion of the hazardous portion of the machine
cycle. The two-hand operating lever trip, or control device shall require
concurrent actuation of both of the operating levers or hand controls
to initiate a machine cycle.
4.2.4.3.3 The two-hand control device shall require the concurrent actuation
of the operator's hand controls during the hazardous portion of the machine
cycle such that the operator cannot reach the hazard before the hazardous
motion has ceased.
OSHA Federal Register
Section 1910.217
(v) Two-hand controls for single stroke shall conform to the following
requirements:
(a) Each hand control shall be protected against unintended operation
and arranged by design, construction, and/or separation so that the concurrent
use of both hands is required to trip the press.
(b) The control system shall be designed to permit an adjustment which
will require concurrent pressure from both hands during the die closing
portion of the stroke.
(c) The control system shall incorporate an anti-repeat feature.
(d) The control systems shall be designed to require release of all operators'
hand controls before an interrupted stroke can be resumed. This requirement
pertains only to those single-stroke, two-hand controls manufactured and
installed on or after August 31,1971.
(vii) The two-hand
control device shall protect the operator as specified in paragraph (c)(3(i)(e)
of section 1910.217
(a) When used in press operations requiring more than one operator, separate
two-hand controls shall be provided for each operator, and shall be designed
to require concurrent application of all operators' controls to activate
the slide. The removal of a hand from any control button shall cause the
slide to stop.
(b) Each two-hand control shall meet the construction requirements of
paragraph (b)(7)(v) of this section.
(c) The safety distance (Ds) between each two-hand control device and
the point of operation shall be greater than the distance determined by
the following formula:
Ds=63 inches/second X Ts: where: Ds-minimum safety distance (inches):
63 inches/second=hand speed constant and Ts-stopping time of the press
measured at approximately 90 position of crankshaft rotation (seconds)
.
(d) Two-hand controls shall be fixed in position so that only a supervisor
or safety engineer is capable of relocating the controls.
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