Two-Hand Control
TouchStart
™
Capacitive Palm Button
• No physical pressure required to actuate switch—reduces the
likelihood of wrist injury caused by repetitive motion.
• Excellent sensitivity—sensor is designed to operate even if
operator is wearing gloves.
• RFI Immunity—special circuitry inhibits output in the presence
of RFI that would otherwise cause false triggering of output.
• AC version is UL Recognized—meets the applicable
requirements in the proposed first edition of UL
991.
• Saves time and money.
– Easy mounting in a single hole.
– Wiring is simplified because terminals are clearly identified
and easily accessible.
– No special power supplies are required because switch is
available in either 120 VAC or 24 VDC versions.
R
C
US
Description
The TouchStart™ is an ergonomic alternative to a mechani-
cal palm button switch. These switches are often used to cycle
industrial machinery such as punch presses. Unlike mechanical
switches, which can require substantial force to operate, the
TouchStart requires no actuation force. It detects the operator’s
hand and actuates its output relays with a mere touch of the
button.
The design of the TouchStart includes circuitry to prevent false
triggering from the presence of Radio Frequency Interference (RFI).
The TouchStart has been tested by Underwriters Laboratory
and is recognized under
standard UL 991,
“Standard for Power
Operated Machine Controls and Systems.” This is the only UL
standard dedicated to operator safety in press control applica-
tions. The requirements of
UL 991
are in accordance with the
following Standards:
• NFPA79 The Standard for Metal Working Tools.
• NFPA70 National Electrical Code.
• ANSI B11.1 Standard for the Construction, Care and Use of
Mechanical Power Presses.
• OSHA Section 1910.217.
When used in singe cycle mode, the two-hand trip function
shall incorporate an antirepeat feature.
8.4.1.3 Two-Hand Control Devices
The two-hand control device shall have individual hand controls
arranged by design, construction, or separation to require the use
of both hand controls for actuation.
The two-hand control device shall be designed and construct-
ed to protect each hand control against unintended or inadvertent
actuation.
The two-hand control device shall require the concurrent
actuation of both hand controls within a certain time limit before
initiating hazardous motion.
Release of either hand control during the hazardous portion
of the machine cycle shall initiate a stop command. Release and
reactivation of both hand controls is required before motion is
reinitiated.
Components, subassemblies or
modules of the device shall meet
the requirements of 6.1.
Rings or shrouds are commonly
used to protect palm-actuated
buttons from unintentional actua-
tion. Precautions in design or
installation are needed to prevent
actuation of two buttons by the
use of one hand and the elbow of
the same arm and to inhibit other
circumvention of the two-hand
requirement.
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. Descrip-
tions of formulas for distances between the switches and from
nearest hazard can be found in American National Standards
Institute (ANSI) B11.1 and B11.19-2010.
Important Installation Instructions
This sensor has been tested to meet requirements regarding
safety devices. Before installing, refer to ANSI B11.1, B11.19,
and OSHA 1910.217.
ANSI Standard B11.19-2010 gives the following definitions:
8.4.1.2 Two-Hand Trip Devices
Each two-hand trip device shall be designed and constructed
to protect each hand trip control against unintended or inadver-
tent operation.
The two-hand trip device shall have the individual hand controls
arranged by design, construction, or separation to require the use
of both hands for actuation.
The two-hand trip device shall be designed and constructed to
require concurrent operation of both hand trip controls to initiate
the machine cycle.
L-2
1
TouchStart
Two-Hand Control
Description (continued)
Since each two-hand control or trip
application is different the user needs to
make sure that all Occupational Safety
and Health Administration (OSHA) and
American National Standards Institute
(ANSI) requirements are followed.
This device shall be installed such
that the distance between the terminal
connections of the palm button switch
with leads installed and a dead metal part
(including the enclosure) is a minimum of
1/4 inch.
TouchStart palm button assembly with
Round Ring Guard, model TS-R and TS-B1
TouchStart palm button assembly with
Square Ring Guard, model TS-SQ and TS-B1.
Specifications
TS-10 for 120 VAC; TS-20 for 24 VDC
Max Wiring Size:
Housing Material:
Weight:
Actuation:
Power Supply
TS-10:
TS-20:
Power Consumption:
Indicator:
Output:
Contact Ratings:
Mechanical Life:
Electrical Life:
Mechanical Shock:
Vibration:
Relative Humidity:
Noise Protection:
Weldfield Immunity:
RFI:
Protection:
Temperature Range:
Max Response Times:
Approvals:
14 AWG (1)
Nory lN190
313 g (11 oz.)
Hand sensitive requiring no pressure to initiate, operates with or without gloves
120 VAC ±10%, 45 to 60 Hz
24 VDC ±10%
≤1
W
Red LED, illuminates when relays are energized
Two relays provide 1 set of normally open contacts, 1 set of normally closed contacts.
Force-guided contacts are used.
1 A at 250 VAC max resistive; 1 A @ 90 VDC max resistive
Greater than 50 million operations
Greater than 5 million operations at loads less than 50 VA
45 g for 2 ms
4 g at f
≤60
Hz and amplitude
≤
1 mm
≤
99%
Bursts to 2 kV, spikes of 500 V, electrostatic fields to 8 kV*
Resistor welding up to 50 kA AC/DC (in suitable enclosure)*
≤
8 V/m
IP64
-18 to 50°C (0 to 122°F)
On = 60 ms; Off = 80 ms
CE marked for all applicable directives, UL and C-UL
Specifications are subject to change without notice.
* If any of these values are exceeded, the TouchStart will default to a safe state (output relays de-energized). The
TouchStart automatically resets when conditions fall below the limit.
2
L-3
TouchStart
Two-Hand Control
Application
4
7
3
2
6 -V
Power
Supply
1
5 +V
1
5 +V
3
2
6 -V
Power
Supply
4
7
Feedback loop
KM2
24 VDC
KM1
Fuse
L1
L2
L3
L1
A1 A2
T13 T11 T12 T31 T32
K1
3
4
1
6
PE T23 T21 T22 C
D
Control Circuit
K2
K1
K2
2
5
13 23 33 41
JP
1
2
3
4
5
6
KM1
KM2
G9SA-TH301
14 24 34 42
M
KM1
KM2
N
Wiring
Connection Diagram
TS-10
4
TS-20
4
7
4
3
2
1
5
6
7
7
Relay
Output
3
6
2
5
L2
L1
Power
Supply
Relay
Output
3
6
2
5
-V
+V
Power
Supply
1
1
L-4
3
TouchStart
Two-Hand Control
Dimensions
TouchStart
2.36
———
ø 60
LED indicator for power
on and functionality
(in./mm)
Square Ring Guard TS-SQ
0.18
4.57
Dia. holes
1.61
40.9
3.46
——
88
0.39
——
10
1.57
——
40
0.08
——
2
2.78 Dia.
70.6
4.88
124.0
5.81
147.6
0.79
——
20
3.22
81.8
Gasket
Screw
terminals
1.69
———
ø 43
2.20
———
ø 56
4.88
123.9
1.86
47.2
1.75
44.5
Note: When used with a shroud or ring, the top of the shroud or ring must be at least 1/2 inch
higher than the top surface of the TouchStart.
Mounting: To mount the TouchStart, cut a mounting hole of 1-7/8 in diameter (47.6 mm).
Round Ring Guard TS-R
3/4-14 NPT
TS-B1 and TS-B2 Side View
2.375
60.3
2.188
55.6
2.937 1.875
74.6 47.6
TS-B1
0.313
Dia.
8
4.96
Dia.
126
3.250
82.6
2.362
60
Dia.
Sensor
1.125
28.6
5.38
136.5
1.13
28.6
2.94
75
2.29
58.2
1.654
42
0.750
19.1
4.69
119
2.645
67.2
Ref.
TS-B2
4.687
119
1.13
28.6
0.75
19
5.38
136.5
1.13
28.6
5.437
138.1
2.88
73
4.69
119
2.94
75
4
L-5
TouchStart
Two-Hand Control
Ordering
Model
TS-10
TS-20
TS-SQ
TS-R
TS-B1
TS-B2
Description
TouchStart Palm Button, includes mounting jam nut and gasket, 120 VAC
TouchStart Palm Button, includes mounting jam nut and gasket, 24 VDC
Plastic, square ring guard, mounting screws, spacers
Metal, round ring guard, mounting screws, spacers
Electrical box, with one conduit hub (3/4 in.), cover plate for box, gasket for box
Electrical box, with two conduit hubs (3/4 in.), cover plate for box, gasket for box
Warning!
This product may cause substantial
personal injury or property damage
if it is not installed and used in
accordance with the manufacturer’s
instructions and in accordance with
regulations of the Occupational
Safety and Health Administration
Part 1910.217, the procedures
prescribed by the American
National Standards Institute
B11.1 and B11.19, and all other
applicable regulations, procedures
and codes. The manufacturer shall
not be responsible nor liable for
any injury or damage resulting
from use of the product in any such
applications or the failure to comply
with any such regulation, procedure
or code.
To order a complete TouchStart Palm button,
two-hand control system, order one of each of the following:
TS-10 or TS-20
TS-SQ or TS-R
TS-B1 or TS-B2
G9SA-TH301
TouchStart Palm Button—order two each
Ring Guards or other shields must be installed to avoid accidental operation in safety
applications per OSHA and ANSI — order two each
Electrical box—order a total of two (one of each type or two of one type)
Anti-tie down relay — order one per system
L-6
5
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