EUCHNER NZ.VZ-xxxVS - Manual (Page 6)

Operating Instructions NZ.VZ-...VS 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
094066-05-12/10 (translation of the original operating instructions)
Version NZ1VZ-... VS...-M
(cable entry)
Fit cable gland M20x1.5 with appropriate degree of
protection.
For terminal assignment see Figure 5.
Tighten screws for connections to the switching
element to 0.5 Nm.
Check that the cable entry is sealed.
Close switch cover and tighten screws to 1.2 Nm.
Version NZ2VZ-5...VS...
(plug connector SR6)
Conductor cross-section 0.5 to 1.5 mm².
For connector assignment see Figure 5a.
Version NZ2VZ-2...VS.../NZ2VZ-3...VS...
(plug connector SR11)
Conductor cross-section 0.5 mm².
For connector assignment see Figure 5b.
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:
Mechanical function test
The actuator must slide easily into the actuating head.
Close the safety guard several times to check the
function.
Electrical function test
1. Switch on operating voltage.
2. Close all safety guards.
Guard locking by solenoid force: Activate guard
locking.
The machine must not start automatically.
It must not be possible to open the safety guard.
3. Enable operation in the control system.
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.
The safety guard must remain locked until there is no
longer any risk of injury.
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.
Service and inspection
If damage or wear is found, the complete switch
must be replaced.
Replacement of individual parts or assemblies,
especially of the actuating head, is not permitted!
No servicing is required,
but regular inspection of the following is necessary to
ensure trouble-free long-term operation:
correct switching function
secure mounting of components
dirt and wear
sealing of cable entry
loose cable connections or plug connectors.
Note:The year of manufacture can be seen in the bottom,
right corner of the rating plate.
Figure 5: Switching elements with switching functions and connector assignment
511
528
538
3131
2131
2121
View of connection side
for the safety switch
1
6
5 4
3
2
9 11
10
5 4
6 3
7 2
8 1
locked unlocked open
Terminal assignment
Plug connector
SR6
Terminal assignment
Plug connector
SR11
Ordinal number of
switching contacts
Figure 5a
Figure 5b
View of connection side
for the safety switch
Figure 6: Safety switch series NZ.VZ-...VS. Figure 7: Plug connector for solenoid locking
U
M
U AC N
U DC N
The actuator must be fully
inserted in the safety switch
before voltage is applied to the
locking solenoid.
Exclusion of liability under the following
circumstances
incorrect use
non-compliance with safety regulations
non-compliance with safety regulations
failure to perform functional checks.
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:
Machinery directive 2006/42/EC
Standards applied:
EN 60947-5-1:2004 + Cor.:2005 + A1:2009
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.