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Constraints for Use (Safety requirements for integration)
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l.
The speed limited by safety function “inspection overspeed (final tripping)” can be used to ensure
the worst-case speed for the determination of the braking distance for “pre-triggered stopping sys-
tem” (see point
m.
The inspection speed is normally limited by lift control. LIMAX33 CP-00 supervises this limitation
by safety function “inspection overspeed (pre-tripping)”. The tripping speed should be chosen so
that is
big enough, so that this safety function does not trip by fail if the car travels in an inspection
trip with normal inspection speed.
small enough so that - in case of a too fast inspection trip by failure - this safety function
has the chance to stop the car by machine brake via safety circuit before the car is stopped
by safety gear (tripping of safety gear cause by “inspection overspeed (final tripping)”
n.
The offset of limit positions for upper resp. lower “pre-triggered stopping systems” must be chosen
in such a way, that ample survival space for a person on car roof resp. in the shaft pit is ensured
after the sequence car stopped
safety gear tripped
limit positions for upper resp. lower “pre-
triggered stopping systems” have been over travelled. Braking distance under worst case condi-
tions must be considered when defining the offsets. Braking distance depends on actual speed
(due to worst case assumption, refer to
l and
e ), reaction time of CP (see point
8. be-
low) and delay and the deceleration of the safety gear.
o.
The feature “trip direction” = “only down” may be used if the safety gear is only unidirectional. In
this case all safety function using the eSGC as an actuator will trip only in downwards direction.
Therefore, the combination “trip direction” = “only down” is forbidden in combination with some
of the safety functions (refer also to
c and
p). Other safety functions can only be used under
constraints if “trip direction” = “only down” (refer to
i and
q )
p.
LIMAX33 CP-00 is able to fulfill EN81-20 §5.2.6.4.3.1 b.), but only if safety function “working
platform” is enabled. The combination “working platform is enabled” and “trip direction = only
down” is forbidden. It is also prevented by the software of the LIMAX33 CP-00 that this combina-
tion is programmed.
q.
If “door bridging / UCM” is enabled and “trip direction = only down” is enabled, tripping of
UCM will act the braking element connected to the eSGC actuator (normally the safety gear) only
in downwards direction. If UCM trips in upwards direction only OC opens (additional to SR1 and
SR2). In this case it must be either ensured that it is in compliancy with the EN81-20 that UCM
can be fulfilled with the machine brake in upwards direction or “UCM in upwards direction” must
be secured by other means (outside the scope of LIMAX33 CP-00).
r.
If “UCM only OC” is enabled, only OC will open (additional to SR1 and SR2). In this case the
machine brake is the braking element for the safety function “UCM”. Therefore, the machine
brake must be a certified safety brake in order to fulfil EN81-20 §5.6.7.
s.
Safety function “over speed teach (pre-tripping)” is intended to be used as a substitute for ETSL
during teach mode. If this safety function is not needed, it may be disabled. If it is needed, the
tripping speed for “over speed teach (pre-tripping)” should not be higher than the buffer speed.
t.
Safety function “over speed teach (final-tripping)” is intended to be used for general additional
safety (without a reference to the EN81-20). It may be disabled if not desired.
u.
The Parameter “a”, “V
buf
”, “t
del
“ and “offset” must be adjusted in such a way, that – in case ETSL
trips - the car hits the buffer surface with a speed not bigger the buffers are designed for.
v.
The OC actuator must be enabled in any case
2.
To prevent any short-circuit between the 24 VDC UP/DOWN signals of the inspection control or the
24 VDC “EN21-21” signal of the electrical safety device and adjacent circuits, the requirements of EN81-
50§5.15 must be met.
3.
The technical data (mechanical, electrical and environmental) concerning the LIMAX33 CP-00 - sensor as
defined in chapter
7.3 are valid for constraints for use.
4.
The technical data (mechanical, magnetically and environmental) concerning the magnetic tape as de-
fined in a separate data sheet are valid for constraints for use.
5.
The value of fuse protecting the safety circuit must be in compliancy with the electrical data of safety circuit
defined in chapter
6.
The value of fuse protecting the eSGC circuit must be in compliancy with the electrical data of eSGC-
circuit defined in chapter
7.
Operation height: up to 2000 m above sea level
Содержание LIMAX33 CP-00 SERIES
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