Teknic EF-785, Руководство по установке

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I
NTEGRATION
S
TEPS
S
TEP
1: C
OMPLETE A RISK ASSESSMENT AND SELECT GUARD
-
LOCKS OR INTERLOCKS FOR GUARDED AREAS
EN1050
RISK ASSESSMENT
For each risk in your machine you must perform a risk assessment
according to the EN 1050 standard. Naturally, you should acquire a copy
of the EN 1050 standard and follow it to accomplish this. The results of
this risk assessment will help you determine the appropriate level of
safety control system required per EN 954-1 (levels B, 1, 2, 3 or 4) for
each hazard. The eF-785 can meet levels B,1,2, and 3. Therefore, in order
to use the eF-785 as a “stand-alone” safety control center, none of the
hazards in your machine can exceed EN 954-1 level 3 requirements.
1
S
ELECT
G
UARD
-
LOCKS OR
I
NTERLOCKS
(
FOR EACH GUARDED
H
AZARD
)
IMPORTANT: You should read Appendix A of this manual:
“Meeting the EU Machinery Directive for CE Compliance”
to
ensure your machine meets certain requirements. If your machine meets
the assumptions described in Appendix A, you can follow the rules below
for selecting between interlock switches (which simply indicate the
open/closed state of a guard) and guard-lock switches (which are
interlock switches with physical solenoid-driven locking devices):
You can use interlock switches (without locks) on guards in the Main
area of your machine when:
a. The hazards are such that the EN 954-1 assessment concludes that
they require a level B, 1, or 2 safety control system,
or
b. when the guards are clearly marked as containing hazards behind
them and the guard can only be opened with a tool or key.
Guard-locks must be used if the hazards are such that the EN 954-1
assessment concludes that they require a level 3 safety control system.
Guard-locks may be required in some areas while only interlocks may be
required in others. See Appendix A for more details.
In the Load area of your machine, guard-locks (interlock switches
with power-off locks) must always be used, regardless of the types of
hazards.
If you are unsure where to use guard-locks vs. interlocks you can
safely elect to use guard-locks in all positions as they offer superior safety
qualities. This will provide you with an additional method of control over
user access, often advantageous for other operational reasons.
1 It’s usually possible to extend the eF-785 with external components to meet EN-954
level 4 compliance but that topic is beyond the scope of this manual. It’s often easier to
reduce the hazards in the machine to lower the required level of the safety control
system, by eliminating pinch points, having mechanical interlocks with guards, etc.
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U G U S T
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