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CHAPTER 10 – PREVENTIVE AND CORRECTIVE MAINTENANCE
10.6.7 Door handles
—
References
The door secured by a safety switch and the door
—
of the control compartment have pivoted door
10-11 Pivoted door handle
handles and locks with triangular inserts (10-11).
The doors are opened using the supplied key.
1. To release the door handle, insert and turn the
key to the right. The door handle will pop out.
2. To open the door, turn the door handle
-
-
3. To lock the door, bring the door handle in line
with the door plate and press the handle down
until it clicks in.
10.6.8 Service covers
!
High temperature!
Components inside the drive can be hot.
Before taking off a service cover on the back of the
cabinet, wait until the fan has stopped. To cool
down the components, the fan continuous to run
for a preset time after the main power supply has
been switched off.
The service covers on the back of the cabinet do
not have to be removed for servicing the drive. All
components inside the cabinet are accessible
through the front of the cabinet.
10.6.9 Visual checks on the drive
Check the drive and its immediate vicinity visually
at the intervals stated on the maintenance sched-
ule and pay attention to the following items:
•
Humidity inside the drive
•
Permitted range of ambient air temperature
and humidity of the drive
•
Dust built-up inside the drive
•
Appropriate fastening of cables and wires and
connections of cable shields and screens
•
Integrity of cable insulation
•
Signs for overheated components, wires, cables
or busbars
•
Corrosion on electronic circuit boards, connec-
tors or busbars
—
10-11
to the right if the door is hinged on the right,
to the left if the door is hinged on the left.
CAUTION
•
Correct type of signal and power supply cables
For information, see the applicable cable
specifications.
10.6.10 Cleaning
NOTICE
Risk of component damage!
• Dust on electrical components and wiring can
cause failure and damage the components.
Dust and moisture can build up in loose connec-
tions and cause loss of low-level signals.
Check the cabinet regularly for signs of dust and
humidity and clean if necessary.
• Alcohol and solvents can damage the compo-
nents.
Use appropriate and recommended cleansing
agents.
When cleaning the drive cabinet, mind the follow-
ing:
•
To prevent dirt falling into equipment, cover the
equipment.
•
The drive contains components which are sensi-
tive to electrostatic discharge. Therefore, take
electrostatic-sensitive precautions and use
suitable tools.
•
Clean circuit boards with special care. To pre-
vent the components being damaged, use anti-
static brushes and a vacuum cleaner with a soft
nozzle.
•
Remove dust on assemblies and busbars inside
the cabinet with a vacuum cleaner and lint-free
cleaning cloths.
•
Remove water, oily or greasy deposits on
assemblies, components and busbars with
water- and oil-absorbing microfibers such as
"3M Scotch Brite".
•
Use a nylon brush or a vacuum cleaner for
removing dust or deposits from recesses.
•
Clean the outside of the cabinet with a vacuum
cleaner and cleaning cloths.
151
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