EUCHNER ESH - Manual (Page 3)

Operating Instructions Safety Hinge ESH
Correct use
The safety hinges ESH are safety devices for monitor-
ing movable safety guards, such as doors or covers
on machinery or systems.
In combination with a separating safety guard, this
safety component prevents the safety guard from
being opened while a dangerous machine movement
is being performed. A stop command is triggered if
the safety guard is opened during the dangerous
machine function.
The safety switches series ESH comply with the
regulations of EN 60947-5-1, Annex K and comply
with the requirements of the employers' liability insur-
ance associations for machines, installations and
personnel protection.
Before safety switches are used, a risk assessment
must be performed on the machine in accordance
with
f
EN ISO 13489-1, Safety of machinery. Safety re-
lated parts of control systems. General principles
for design
f
EN ISO 14121, Safety of machinery. Risk assess-
ment. Principles
f
IEC 62061, Safety of machinery. Functional safety
of safety-related electrical, electronic and program-
mable electronic control systems.
Correct use includes compliance with the relevant re-
quirements for installation and operation, in particular
f
EN ISO 13489-1, Safety of machinery. Safety re-
lated parts of control systems. General principles
for design
f
EN 1088, Safety of machinery. Interlocking devices
associated with guards. Principles for design and
selection
f
EN 60 204-1, Safety of machinery. Electrical equip-
ment of machines. General requirements.
Important:
f
The user is responsible for the integration of the
device in a safe overall system. For this purpose
the overall system must be validated, e.g. in ac-
cordance with EN ISO 13849-2.
f
If the simplified method according to section 6.3
EN ISO 13849-1:2008 is used for validation, the
Performance Level (PL) may be reduced if several
devices are connected one after the other.
f
If a product data sheet is included with the product,
the information on the data sheet applies in case
of discrepancies with the operating instructions.
Safety precautions
Safety switches fulfill a personal protection function.
Incorrect installation or tampering can lead to severe
injuries to personnel.
Safety components must not be bypassed
(bridging of contacts), turned away, removed
or otherwise rendered ineffective.
On this topic pay attention in particular to the mea-
sures for reducing the possibility of bypassing from
EN 1088:1995+A2:2008, sec. 5.7.
A complete safety-oriented system generally
consists of several signaling devices, sensors,
evaluation units and concepts for safe shutdown.
The manufacturer of a machine or installation is
responsible for correct and safe overall function.
Mounting, electrical connection and setup only
by authorized personnel.
Function
The safety switch signals that the safety guard is
closed.
The switching state is additionally indicated in the
window (default setting on delivery closed).
The switch does not perform guard locking!
Installation
Safety switches must be arranged such that they are
adequately secured against movement.
The maximum load given must not be exceeded.
The safety hinge is not allowed to be used as a
mechanical limit for the door pivot radius.
You can obtain suitable plain hinges without switches
from EUCHNER under order no. 096 007.
To meet these requirements:
f
The fixings must be reliable and must also require
the use of a tool to undo them.
f
Mount the safety switch positively.
f
Fit switches using M6 screws.
Proceed as follows:
1. Fasten hinges to the frame. The fastening points
for the two hinges must be as far apart as pos-
sible. The axes around which the hinges pivot
must be exactly in a line.
2. Move door to the required position and secure
against slipping or falling.
3. Fit door to the hinges.
4. Fix door in closed position.
Warning: risk of injury due to slipping or falling on
shearing off the hex head. Ensure you are standing
safely and do not tighten hex head with a jerking
action.
Caution: do not move door while tightening the
shear screw, as then the operating point will change.
The operating point is already fixed on tightening. It
is not possible to correct the position later.
5. Screw in shear screw to the stop. Slowly tighten
further until the hex head shears off.
¨ The operating point is fixed permanently in this
position.
Electrical connection
For use and applications as per the requirements
of , a class 2 power supply or a class 2
transformer according to UL1310 or UL1585
must be used. As an alternative, a low voltage
power supply according to UL508 table 32.1
can be used.
f
Connect M12/5-pin plug connector.
f
You can obtain suitable connection cables from
EUCHNER under order no. 073461.
Setup
l = max.
4 x M6
Support
Support/adjustment aid
f Mechanical function test
1. Open door and check operating point. The hinge
must switch at the latest 4° from the closed posi-
tion (fixing position). The switching contacts are
positively opened after approx. 10°.
2. Check whether the door moves freely.
f Electrical function test
1. Close the safety guard.
2. Start the machine.
3. Check whether the machine stops when the
safety guard is opened.
4. Switch off the machine.
5. Open the safety guard. The machine must not
start when the safety guard is open!
When the safety guard is open, the safety switch must
be actuated in any safety guard position.
Protection against environmental effects
A lasting and correct safety function requires pro-
tection against the penetration of foreign bodies
such as swarf, sand, blasting shot, etc. Only use
solvent-free and acid-free cleaning agents to clean
the safety switch!
Inspection and service
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
loose plug connectors.
If damage or wear is found, the complete switch
must be replaced. Replacement of individual parts
or assemblies is not permitted!
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
installation and electrical connection not performed
by authorized personnel
f
failure to perform functional checks.