Siemens MICROMASTER Vector Series - 1. OVERVIEW; 1.1 Installation - General Notes; Environmental Requirements; Ideal Installation Diagram

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© Siemens plc 1999© Siemens plc 1999
G85139-H1751-U529-D1G85139-H1751-U529-D1
77
4/8/994/8/99
1.1 Installation - General notes1.1 Installation - General notes
Environmental RequirementsEnvironmental Requirements
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Ideal InstallationIdeal Installation
TemperatureTemperature
AltitudeAltitude
ShockShock
VibrationVibration
Electro-Electro-
MagneticMagnetic
RadiationRadiation
AtmosphericAtmospheric
PollutionPollution
WaterWater
OverheatingOverheating
Min. Operating = 0Min. Operating = 0
°°
CC
Max. Operating = 50Max. Operating = 50
°°
C (MMV)C (MMV)
Max. Operating = 40Max. Operating = 40
°°
C (MDV)C (MDV)
If the Inverter is to be installed at an altitude >1000m,If the Inverter is to be installed at an altitude >1000m,
derating will be required.(Refer to DA64 Catalogue)derating will be required.(Refer to DA64 Catalogue)
Do not drop the inverter or expose to sudden shock.Do not drop the inverter or expose to sudden shock.
Do not install the inverter in an Do not install the inverter in an
area where it is likely toarea where it is likely to
be exposed to constant vibration.be exposed to constant vibration.
Do not install the inverter near sources of electro-Do not install the inverter near sources of electro-
magnetic radiation.magnetic radiation.
Do not install the inverter in an environment, whichDo not install the inverter in an environment, which
contains atmospheric pollutants such as dust,contains atmospheric pollutants such as dust,
corrosive gases, etc.corrosive gases, etc.
Take care to site the inverter away from potentialTake care to site the inverter away from potential
water hazards. e.g. Do not install the water hazards. e.g. Do not install the
inverter beneathinverter beneath
pipes that are subject to pipes that are subject to
condensation. Avoid installingcondensation. Avoid installing
the inverter where excessive humidity andthe inverter where excessive humidity and
condensation may occur.condensation may occur.
Ensure that the inverter’s air vents are not obstructed,Ensure that the inverter’s air vents are not obstructed,
including the air vent at the front of the unit, whichincluding the air vent at the front of the unit, which
should be should be
at least 15mm at least 15mm
from any obstruction.from any obstruction.
Additional ventilation Additional ventilation
may be required for horizontalmay be required for horizontal
mounting.mounting.
Make sure that there is an adequate air-flow throughMake sure that there is an adequate air-flow through
the cabinet, as follows:the cabinet, as follows:
1. 1.
Using Using
the the
formula formula
below, below,
calculate calculate
the the
air-flowair-flow
required:required:
Air-flow (m3 / hr) = (Dissipated Watts /Air-flow (m3 / hr) = (Dissipated Watts /
∆∆
T) x 3.1T) x 3.1
2. 2.
If If
necessary, necessary,
install install
cabinet cabinet
cooling cooling
fan(s).fan(s).
NoteNote
::
Dissipation (Watts) = 3-5% of inverter rating.Dissipation (Watts) = 3-5% of inverter rating.
∆∆
T = Allowable temperature rise within cabinet in °C.T = Allowable temperature rise within cabinet in °C.
3.1 = Specific heat of air at sea level.3.1 = Specific heat of air at sea level.
160 mm160 mm
100 mm100 mm
Figure: 1.1Figure: 1.1
Note: The Plastic Material of the case can be degraded by oil or grease. Care should be taken toNote: The Plastic Material of the case can be degraded by oil or grease. Care should be taken to
ensure that ensure that
the mounting surface and fixings the mounting surface and fixings
are thoroughly degreased before use.are thoroughly degreased before use.