EUCHNER STAxxx - Manual (Page 5)

Operating Instructions STA... Safety Switch
EUCHNER GmbH + Co. KG Kohlhammerstraße 16 D-70771 Leinfelden-Echterdingen Tel. +49/711/75 97-0 Fax +49/711/75 33 16 www.euchner.de [email protected]
Subject to technical modifications; no r
esponsibility is accepted for the accuracy of this information. © EUCHNER GmbH + Co. KG
096775-06-02/11 (translation of the original operating instructions)
f Version STA.. (Cable entry M20x1.5)
f Remove locking screw for the required insertion
opening.
f Fit the cable gland with the appropriate degree of
protection.
f For terminal assignment see Figure 2.
f Connect earth conductor
f Tighten the screws with a torque of 0.5 Nm.
f Check that the cable entry is sealed.
f Close the cover and screw in position.
f Version STA..SR../STA..RC18..
(plug connector)
f For terminal assignment see Figure 2.
f Version STA4.../STA3...
For switching elements with four positively driven
NC contacts only the contacts 21-22 and 41-42
are actuated on activating and deactivating the
guard locking. In applications with potentially
hazardous states (e.g. overtravelling movements),
contact 21-22 and/or 41-42 must always be
integrated into the safety circuit.
Functional check
Warning! Danger of fatal injury as a result of faults
in installation and functional check.
Before carrying out the functional check, make
sure that there are no persons in the danger
area. Observe the valid accident prevention
regulations.
After installation and any fault, the safety function
must be fully checked. Proceed as follows:
f Mechanical function test
The actuator must slide easily into the actuating
head. Close the safety guard several times to check
the function.
f Electrical function test
1. Switch on operating voltage.
2. Close all safety guards.
Guard locking by solenoid force: ¨ Activate
guard locking.
f The machine must not start automatically.
f It must not be possible to open the safety guard.
3. Enable operation in the control system.
f It must not be possible to deactivate the guard
locking as long as operation is enabled.
4. Disable operation in the control system and
deactivate guard locking.
f The safety guard must remain locked until there is
no longer any risk of injury.
f It must not be possible to start the machine as long
as the guard locking is deactivated.
Repeat steps 2 - 4 for each safety guard.
Inspection and service
If damage or wear is found, the complete switch
and actuator assembly must be replaced.
Replacement of individual parts or assemblies
is not permitted!
No servicing is required, but regular inspection
of the following is necessary to ensure trouble-free
long-term operation:
f correct switching function
f secure mounting of components
f dirt and wear
f sealing of cable entry
f loose cable connections or plug connectors.
Note:The year of manufacture can be seen in the
bottom, right corner of the rating plate.
Exclusion of liability under the following
circumstances
f incorrect use
f non-compliance with safety regulations
f non-compliance with safety regulations
f failure to perform functional checks.
Figure 2: Switching elements and switching
functions
E1
E2
E1
E2
v
h
E1 E2
PE
Actuator: Door closed Door closed Door
Switching position:with guard locking and not locked open
Type Terminal
assignment
Ordinal numbers
of switching
contacts
STA1-4131..
STA2-4131..
STA3-4131..
STA4-4131..
STA3-2131..
STA4-2131..
STA3-4121..
STA4-4121..
9 11
10
5 4
6 3
7 2
8 1
Pin layout
Plug connector SR11
Pin layout
Plug connector RC18
13
14 16
17
1
2
3
4
5 7
8
9
10
11
6
15
19
18
12
leading with
screen
bonding
clamp
STA3-4141..
STA4-4141..
EC declaration of conformity
The manufacturer named below herewith declares that
the product fulfills the provisions of the directive(s)
listed below and that the related standards have been
applied.
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen, Germany
Directives applied:
f Machinery directive 2006/42/EC
Standards applied:
f EN 60947-5-1:2004 + Cor.:2005 + A1:2009
f EN 1088:1995+A2:2008
Leinfelden, July 2010
Dipl.-Ing. Michael Euchner
Director
Duc Binh Nguyen
Authorized representative empowered to draw up
documentation
The signed EC declaration of conformity is included
with the product.