Connection Diagram; Threshold Adjustment; Factory Preset Load Limiters - Tractel dynasafe Mecha 3.2 Manuel D'installation, Utilisation Et Maintenance

Position the compression pin (11) in
a)
accordance with the force in the wire rope
(See figure 3) :
GB
Position
GB
1
DE
NL
ES
2
IT
PT
GR
3
NO
SE
FI
DK
PL
Open the mobile half-clamp (8).
b)
RU
Make sure the pull wire rope (13) is free
c)
of any load.
Position the load limiter on the idle strand
d)
on the wire rope near the fixed point,
with the cable gland (2) pointing upward.
Close the mobile half-clamp (8) on the
e)
wire rope
Evenly adjust the mounting screws (9) (9
f)
Nm) to avoid any risk of the load limiter
moving with respect to the wire rope.
Too much clamping force can result in
damage to the clamp.
Check that the load limiter is correctly
g)
positioned
movement up to the high limit switch and
check that the lifting equipment does not
touch the load limiter. If necessary,
correct the limit switch adjustment to
keep sufficient clearance between the
load limiter and the pulley block. Also
check, when the pulley block is at the
high limit switch, that the load limiter
does not come into contact with the
crane structure.
4.3. Load
connection
a) Correctly secure the electrical cable of
the load limiter up to the control cabinet
Installation
b) Connect the control circuit contact wires
as instructed in §4.4
10
Requirement
For a 5 to 8 mm
wire rope and for
loads between 200
daN and 900 daN
For a 9 to 13 mm
wire rope and loads
between 200 daN
and 1850 daN
For a 14 to 16 mm
wire rope and loads
between 200 daN
and 3200 daN
by performing a
limiter electrical
Micro
capacity: 4 A / 250 VAC.
Reset hysteresis depending on
the effort, between 50 and 200
kg.
Safety feature should be managed by one of
the NC contacts of the load limiter; in this
way, an overload situation will be detected
when the contacts open. Applying this
condition will also ensure a positive safety
function for the lifting machine in the event of
an accidental interruption of the link between
the load limiter and the control circuit.
The NO
management of slack cable situations and/or
situations where the operator warning system
has been triggered subsequent to cross-over
of one of the thresholds.
4.4.

Connection diagram

See figure 4
5.

Threshold adjustment

the complementary threshold. Since the micro
switches have the same characteristics, these
lifting
configurations can be inverted
The adjustment process should always be
preceded by a preload at 110% of the desired
threshold.
5.1.

Factory preset load limiters

When you purchase a load limiter dynasafe
Mecha 3.2 with the factor preset option, the
load limiter is supplied with the adjustment
screws and locknuts locked with red varnish.
The nameplate on the load limiter indicates the
threshold setting value and the wire rope
diameter for which the thresholds have been
adjusted.
switch interrupting
contacts are intended
In the example given below,
have arbitrarily designated
threshold S1 as the safety
threshold and threshold S2 as
for
we
TM