EUCHNER STP-BI Serie Manual De Instrucciones página 6

Operating Instructions
Safety Switch STP-BI...
Selection of the actuator
NOTICE
Damage to the device due to unsuitable actuator.
Make sure to select the correct actuator (see
table in Figure 4).
Additionally pay attention to the door radius and
the fastening options (see Figure 3).
The following versions are available:
Actuator S for safety switches without insertion
f
funnel.
Actuator L for safety switches with insertion funnel.
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Manual release
Some situations require the guard locking to be
released manually (e.g. malfunctions or an emer‑
gency). A function test should be performed after
release.
More information on this topic can be found in the
standard EN ISO 14119:2013, section 5.7.5.1. The
device can feature the following release functions:
Auxiliary release
In the event of malfunctions, the guard locking can
be released with the auxiliary release irrespective
of the state of the solenoid.
The contacts are opened when the auxiliary
release is actuated. A stop command must be
generated with these contacts.
Actuating auxiliary release
1. Unscrew locking screw.
2. Using a screwdriver, turn the auxiliary release
to in the direction of the arrow.
Guard locking is released.
¨ ¨
Important!
The actuator must not be under tensile stress
f
during manual release.
After use, reset the auxiliary release and screw
f
in and seal the locking screw (e.g. with sealing
lacquer).
Escape release
Permits opening of a locked guard from the danger
area without tools.
Important!
It must be possible to actuate the escape re‑
f
lease manually from inside the protected area
without tools.
It must not be possible to reach the escape
f
release from the outside.
The actuator must not be under tensile stress
f
during manual release.
The escape release meets the requirements of
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Category B according to EN ISO 13849‑1:2015.
The contacts are opened when the escape
release is actuated. A stop command must be
generated with these contacts.
Installation
NOTICE
Device damage due to improper mounting and
unsuitable ambient conditions
Safety switches and actuators must not be used
f
as an end stop.
Observe EN ISO 14119:2013, sections 5.2 and
f
5.3, for information about fastening the safety
switch and the actuator.
Observe EN ISO 14119:2013, section 7, for
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information about reducing the possibilities for
bypassing an interlocking device.
Protect the switch head against damage, as well
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as penetrating foreign objects such as swarf,
sand and blasting shot, etc.
Changing the actuating direction
Figure 1: Changing the actuating direction
1. Remove the screws from the actuating head.
2. Set the required direction.
3. Tighten the screws with a torque of 0.8 Nm.
4. Cover the unused actuating slot with the en‑
closed slot cover.
Electrical connection
WARNING
Loss of the safety function due to incorrect
connection.
Use only safe contacts ( and
f
functions.
When choosing the insulation material and
f
wire for the connections, pay attention to the
required temperature resistance and the max.
mechanical load!
Use of the safety switch as guard locking for
personnel protection
At least one contact must be used. It signals
the guard locking state (for terminal assignment,
see Figure 2).
Use of the safety switch as guard locking for
process protection
At least one contact must be used. Contacts
with the symbol can also be used (for terminal
assignment, see Figure 2).
The following information applies to devices
with plug connector:
Check that the plug connector is sealed.
f
Function test
WARNING
Fatal injury due to faults during the function test.
Before carrying out the function test, make sure
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that there are no persons in the danger area.
Observe the valid accident prevention regula‑
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tions.
Check the device for correct function after installa‑
tion and after every fault.
Proceed as follows:
Mechanical function test
The actuator must slide easily into the actuating
head. Close the guard several times to check the
function. The function of any manual releases (except
for the auxiliary release) must also be tested.
Electrical function test
1. Switch on operating voltage.
2. Close all guards and activate guard locking.
The machine must not start automatically.
¨ ¨
It must not be possible to open the guard.
¨ ¨
3. Start the machine function.
It must not be possible to release guard locking
¨ ¨
as long as the dangerous machine function is
active.
6
4. Stop the machine function and release guard
locking.
The guard must remain locked until there is no
¨ ¨
longer any risk of injury (e.g. due to movements
C D
with overtravel).
B A
It must not be possible to start the machine
¨ ¨
function as long as guard locking is released.
Repeat steps 2 ‑ 4 for each guard.
Bi-state function test
1. Switch on operating voltage and close the
guard.
2. Switch operating voltage off.
It must not be possible to open the guard.
¨ ¨
3. Switch on operating voltage.
4. Deactivate guard locking (switch on control
voltage) and open the guard
5. Switch operating voltage off.
It must be possible to close and open the guard
¨ ¨
as required.
Repeat the functional test individually for each guard.
Inspection and service
) for safety
WARNING
Danger of severe injuries due to the loss of the
safety function.
If damage or wear is found, the complete switch
f
and actuator assembly must be replaced. Re‑
placement of individual parts or assemblies is
not permitted.
Check the device for proper function at regular
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intervals and after every fault. For informa‑
tion about possible time intervals, refer to
EN ISO 14119:2013, section 8.2.
Inspection of the following is necessary to ensure
trouble‑free long‑term operation:
correct switching function
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secure mounting of all components
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damage, heavy contamination, dirt and wear
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sealing of cable entry
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loose cable connections or plug connectors.
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Information: The year of manufacture can be seen
in the bottom, right corner of the type label.
Exclusion of liability and warranty
In case of failure to comply with the conditions for
correct use stated above, or if the safety instruc‑
tions are not followed, or if any servicing is not
performed as required, liability will be excluded and
the warranty void.
Notes about
The following information applies to devices
with plug connector:
For use and applications as per the requirements of
, a class 2 power supply according to UL1310
must be used. Connecting cables for safety switches
installed at the place of use must be separated
from all moving and permanently installed cables
and un‑insulated active elements of other parts
of the system that operate at a voltage of over
150 V. A constant clearance of 50.8 mm must be
maintained. This does not apply if the moving cables
are equipped with suitable insulation materials that
possess an identical or higher dielectric strength
compared to the other relevant parts of the system.