18
19
2. Settings in the area of the service position
• Move the withdrawable part out of the limit po
-
sition towards the test/disconnected position
with a few turns of the crank.
• Slowly move the withdrawable part forwards
again to the stop:
Auxiliary switch -S6 must then operate when
the hand crank has a remaining angle of ≥ 60
o
of turn to reach the stop.
5.5.4
Checking auxiliary switch settings on type B with-
drawable parts
(Figures 3/3 and 5/2)
Compliance with the interlock conditions in the
test/disconnected and service position areas is
ensured by position signalling switches -S8 and
-S9 located in the withdrawable assembly and
factory-set.
In test operations, the withdrawable part must be
moved by hand with the crank fitted with the motor
power switched off.
1. Settings in the area of the test/disconnected
position
• Move the withdrawable part out of the test/
disconnected position towards the service
position with a few turns of the crank.
• Slowly move the withdrawable part back to
the stop.
Auxiliary switch -S8 must then switch over just
before the stop is reached.
• Slowly insert the withdrawable part from the
test/disconnected position towards the service
position until auxiliary switch -S8 just operates.
In this position, it must still just be possible to
move closing push rod (13.2.1). For this test,
the function of the blocking magnet -Y0 must
be deactivated manually.
This condition ensures that the electrical
interlock takes effect before the mechanical
interlock in the motion sequence involved.
2. Settings in the area of the service position
• Move the withdrawable part out of the limit po
-
sition towards the test/disconnected position
with a few turns of the crank.
• Slowly move the withdrawable part forwards
again to the stop:
Auxiliary switch -S9 must then switch over just
before the stop is reached.
5.5.5
Checking the direction of rotation of the travel
motors on motor-driven withdrawable parts
• Move the withdrawable part by hand into a central
position between the test/disconnected position
and the service position.
• Remove the hand crank.
• Switch the supply voltage for the travel motor on.
• Use the local electrical controls to check that the
withdrawable part moves in the correct direction.
Caution:
Do not allow the withdrawable part to run up against
a block when the travel direction is incorrect! Switch
the motor power off immediately (the travel process
functions electrically by a seal-in system with limit
position switch-off).
There may be a danger of injury when the door is
open!
5.5.6
Testing of interlock conditions
(Figures 4/1 and 4/2)
The testing procedures for type A and type B with-
drawable parts are identical.
1. The withdrawable part must only be movable
from the test/disconnected position into the
service position when the circuit-breaker is open
and the earthing switch is open.
Check the following conditions individually:
• With the circuit-breaker closed, insertion of the
withdrawable part towards the service position
must be blocked after only half a turn of the
crank in the clockwise direction, and the travel
motor on motor-operated withdrawable parts
must not be capable of being switched on.
• With the earthing switch closed, insertion of
the withdrawable part towards the service
position must be blocked after only two clo-
ckwise turns of the crank, and the travel motor
on motor-operated parts must not be capable
of being switched on.
Do not use force
(max. torque 25 Nm)!
2. The withdrawable part must only be movable
from the service position into the test/discon-
nected position with the circuit-breaker open.
Check this condition as follows:
• With the circuit-breaker closed, withdrawal
movement of the withdrawable part must be
blocked after only half a turn of the crank in the
anti-clockwise direction, and the travel motor
on motor-operated withdrawable parts must
not be capable of being switched on.
3. Closing of the circuit-breaker must only be pos-
sible when the withdrawable part is in the defined
test/disconnected position or service position.
The control wiring plug (10.2) must previously
have been inserted.
Check this condition as follows:
• It must not be possible to close the circuit-
breaker with the withdrawable part in any po-
sition between the test/disconnected position
and the service position.
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Содержание VD4 Series
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