A B B I N T H E R A I LWAY S – M ED I U M VO LTAG E P R O D U C T S
23
A B B I N T H E R A I LWAY S – M ED I U M VO LTAG E P R O D U C T S
23
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7.2.4. Control Box connection
The connection of the control box with the
auxiliary power supply and the signal cables must
be carried out in accordance with the electrical
diagram applicable to the project. The terminal
block in the control box is labelled with the
corresponding indications.
The cable supply to the control box must be
designed with screened cables, screening
earthed at one side and separated cables
for signal and voltage supply.
The supply of the heating resistance should be
operated permanently regardless of the season
and climate, and only interrupted for maintenance
work.
7.3. Commissioning
7.3.1. Status Check
The following checks must be performed before
commissioning:
•
Perfect condition of the insulators
• Apparatus is in the OFF position
• Check the compliance between the
specifications for the supply voltage on the
rating plate and the installation or system
•
Presence of the manual tripping crank
•
Correctly performed earthing
•
Apparatus has reached ambient temperature
(± 5 °C)
•
The heating resistances of the control box and
pole are connected and in operation.
• No traces of moisture and water in the control
box
• With the power supply disconnected, check the
fixation of the control-connection terminals in
the drive unit and control box
Option:
Before switching on the power
supply:
• If equipped with a capacitor fast
discharge, this must be deactivated. For
this, set the switch to the “Operation or
service” position
• If equipped with a low-voltage circuit
breaker for the control circuit, to the
latter must be switched on
7.3.2. Commissioning
The following steps are to be performed for
commissioning:
• Switch on the power supply and wait until the
READY indicator lamp lights up continuously
(approx. 1-3 minutes), = charging of the
capacitors
• To check the OFF position, switch off the
apparatus with the local Off push button
• Switch the apparatus on with the local On push
button or by remote signals
•
In both positions, check that the remote
signalling matches the mechanical local display
• If equipped with a LOCAL/REMOTE/GLOBAL
selector switch, check both operating modes
and in each case, operate with the relevant
commands and check the ON/OFF status
indications
• Repeat the switching cycles several times, locally
and
remote controlled, read off the switch
counter and note the value in the apparatus
logbook
•
The apparatus is ready for remote control
operation
7.3.3. Function of the Ready Signal
As long as the LED indicator “Ready” is not
active or the signal contact “READY” is not
closed, the apparatus cannot be electrically
actuated.
The LED indicator “Ready” and the contact
“READY” indicate the following conditions:
•
Controller (CPU) in standby, ready for operation
• Monitoring whether the apparatus (1-pole or
2-pole) is in the defined open or closed position
•
Capacitor charge is sufficient to perform the
switching action O-CO
•
Coil supervision
If all criteria are satisfied, the apparatus can be
operated. If one of the above criteria is not
fullfilled the apparatus goes into the “NOT READY”
state.
7.3.4. Control of the output power driver
The status of the output power drivers is checked
to verify that they are not in a status that could
prevent switching operation.
This is carried out:
• On powering the equipment
•
Immediately after an opening operation
•
Immediately before a closing operation
•
Every 6 hours