Jokab Safety Safeball Data Sheet
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One and two hand devices
™
Safeball
Approvals:
Safeball for:
Presses
Punches
Fixtures
Shearing machines
Features:
Ergonomic
Low activation force
A two hand device which is
comfortable and easy to use.
SAFEBALL™
Unique World Wide Two hand device
Safeball™ consists of a spherical ball containing two embedded pushbutton switches, one on each side of the ball. By
using this pushbutton configuration, the risk of unintentional
activation is minimised and the device is simple and ergonomic to use.
Safeball™ can be utilised for either One hand (one Safeball™) or Two hand (two Safeballs™) applications. In either
application, and in order to meet the required level of safety, the
Safeball™ switches are monitored by specified/certified ABB
Jokab Safety Safety relays (see electrical connection).
In the case where Two hand control is used, both Safeballs™ i.e. all four pushbuttons have to be activated within
0.5 seconds. If one or more pushbuttons are released a Stop
signal is given to the machine. In order to provide the highest
level of safety the Safeball™ design provides the operator
with a dual switching function and short-circuit supervision
in each hand.
Each Safeball™ is ergonomically designed and has both
its cover and actuator made of environmentally-friendly
polypropylene. The design allows for comfort of use for all
hand sizes and operation from numerous gripping positions.
Mounting of the Safeball™ is also very flexible allowing the
device to be mounted in the most ergonomic position for
the operator.
When can a Two hand or One hand control be used ?
A Two hand control can be used when it is necessary to
Flexible mounting
Several grip possibilities
Highest safety level
Two channel switching in
each hand
ensure that the operator is outside and must be prevented
from reaching into the hazardous area. If the operator decides, after the start signal has been given to the machine,
to make an ‘after-grasp’ i.e. try to adjust the part that has
been placed into the machine, then a dual stop signal is
given to the machine.
A one hand control device can be used when the operator
cannot reach the hazardous area with his/her free hand or
on less dangerous machines.
Highest Safety Level
The Safeball™ is certified by Inspecta in Sweden for use as
a Two hand control device, when used with a JSBR4 ABB
Jokab Safety Safety relay or Pluto Safety-PLC, in accordance
with the highest safety level in standard EN 574 (type IIIc).
Two hand device adapted for AS-i
The two hand device, Safeball also comes in a version
adapted for direct attachment to the AS-i bus.
A top cover is not needed as activation switches
are fitted on each side of the Safeball™.
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Technical data - Safeball
Manufacturer:
Article number/Ordering data:
JSTD1-A Safeball 1 NO + 1
NC with 2 m cable 2TLJ020007R3000
JSTD1-B Safeball Safeball 1
NO + 1 NC with 0.2 m cable 2TLJ020007R3100
JSTD1-C Safeball 1 NO + 1
NC with 10 m cable 2TLJ020007R3200
JSTD1-E Safeball 2 NO 0,2 m
cable 2TLJ020007R3400
Material:
Colour:
Size:
Weight:
Safety level:
EN ISO 13849-1
EN 954-1
Temperature:
Protection class: IP67. Not intended for use under
Operating force: Approx. 2 N
Actuator travel: 1.3 +/- 0.6 mm
Max switching load: 30 V 2A DC, resistive load
Recommended load: 24 V 10mA DC
Min switching load: 6V 10mA DC, resistive load
Contact resistance: 100 mohm
Life, mechanical: > 1x106 operations at max. 1 Hz
ABB AB/Jokab Safety, Sweden
Polypropylene
Yellow and black
Height: approx. 71 mm,
Diameter, min.: 68 mm
Diameter, max.: 72 mm
Diameter, base: 42 mm
0.2 kg with 2 m cable
0.7 kg with 10 m cable
0.1 kg with 4x0.2 m wires
Up to category 4/PLe
Up to category 4
0°C to +55°C (operating)
-20°C to +70°C (storage)
water
Life, electrical: Dependant upon electrical load
characteristics
Connection cable:
JSTD1-A:
JSTD1-B, JSTD1-E:
JSTD1-C:
Conformity:
72
68
23
Ø4,5 (4x)
2m PVC-cable, 4 x 0.75mm
4 x 0.75mm2 wires, approx. 0.2 m
10 m PVC-cable, 4x0.75 mm
EN ISO 12100-1:2003,
EN ISO 12100-2:2003,
EN 574+A1:2008
71
23
mm
Chemical resistance at 20°C
Chemical Resistance
Alcohols good
Paraffin oil good
Milk good
Silicon oil good
Acetone good
Please contact us for more information.
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Function - Safeball
Two hand control device
The Two hand control device is implemented by using
two Safeballs™, each having two internal pushbuttons.
The Safe-balls™ must be mounted a minimum distance
between each other (see Mounting description).
By utilising two pushbuttons in each device a double
safety function is provided in each hand.
The highest safety level is achieved by connecting all
four pushbuttons to the ABB Jokab Safety JSBR4 safety
relay or Pluto Safety-PLC. The safety relay gives a dual and
supervised safety function and requires input activation
within 0.5 seconds in order to start the machine. It also
checks that all four pushbuttons have returned to their
deactivated positions before a new start is allowed. The
JSBR4 safety relay also provides a stop signal if one or
more pushbuttons are released.
One hand control device
Safeball™ is also a very practical method of providing a one
hand control device as it is very easy to find and activate
by the machine operator. One hand devices should only be
used when the operator cannot reach into the hazardous
area with his/her free hand or on less dangerous machines.
Before fitting the necessary risk assessment must be made
to determine suitability of this type of control. To achieve
the highest safety level for One hand control the Safeball™
must be connected to a ABB Jokab Safety safety relay
(See Electrical Connection).
Versions
Safeball is available in several versions to meet different
mounting requirements.
• JSTD1-A - The standard version with actuators made of
plastic and 2 m of cable.
• JSTD1-B - Similar to the standard version but without a
cable. Instead it has four wires, each 0.2 m long.
• JSTD1-C - Similar to JSTD1-A but with 10 m cable.
• JSTD1-E - Similar to JSTD1-B but with 2 NO contacts.
Activation of a
pushbutton.
Safeball™, JSTD1, is certified by DNV Inspecta.
Approval number:
01-MAL-CM-0101 (Two-hand device)
01-MAL-CM-0100 (One-hand device)
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