SCANCLIMBER 65H Series, Instruction Manual, Page: 77 / 164

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O p e r a t i n g i n s t r u c t i o n s Series-65H Hoist Pos 3
V115E_09.20
3.9 Safety Limit - for PLC ver. 2
Possible reasons for the hoist reaching the
bottom safety limit:
• The hoist has been descended man -
ually by releasing the brakes, for in-
stance during transportation.
• The hoist has been overloaded and
because of this the braking distance
became longer than normally and the
hoist reached the safety limit.
• The brakes of the lifting motors are not
correctly adjusted or for instance one
of the brakes does not work. That is why
the braking distance becomes longer
than normally and the hoist reaches
the safety limit.
• The cams of the bottom limit and the
safety limit at the lower end of the mast
are not correctly adjusted in relation
to each other. The distance between
these limits is shorter than the braking
distance with full load.
• Lower terminal limit switch is not work -
ing and only the final limit switch stops
the downward movement.
3.9.1.1 Bottom Safety Limit Reset
Connect test box to socket XP1.1 inside
the ground station box +OP1. Switch “in-
spection” to position 1 and push the but-
ton “Up” (S68A) The hoist starts to move up-
wards and is lift- ed from the safety limit.
Move the hoist only to its normal range of
operation and stop the hoist.
Switch “inspection” to position "0". Discon-
nect test box and connect bridge plug.
When the hoist reaches the safety limit (S18), the control circuit is disconnected and it is
impossible to operate the hoist.
3.9.1 The Bottom Safety limit
H65
Ready Overload Out
of service
Cage
light
Alarm
H63 H66
1 2 3
4 5 6
7 8 9
*
0 #
S103 S30
S60.1
EMERGENCY
STOP
60 %
ON
80 %
100 %
cage position
selected floor
call input
+OP2