Operational manual for dynamic braking unit
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When the temperature is too low, if the dynamic braking unit
needs to restart to run after a long stop, it is necessary to
provide an external heating device to increase the internal
temperature, otherwise damage to the devices may occur.
RH≤90%
No condensation is allowed.
The maximum relative humility should be equal to or less than
60% in corrosive air.
Running
environment
condition
The installation site of the DBU should:
keep away from the electromagnetic radiation source;
keep away from contaminative air, such as corrosive gas, oil
mist and flammable gas;
ensure foreign objects, such as metal power, dust, oil, water
can not enter into the DBU(do not install the DBU on the
flammable materials such as wood);
keep away from direct sunlight, oil mist, steam and vibration
environment.
Below 1000m
If the sea level is above 1000m, please derate 1% for every
additional 100m.
The DBU should be installed on an upright position to ensure
sufficient cooling effect.
Note:
DBU100H series should be installed in a clean and ventilated environment according to
enclosure classification.
Cooling air must be clean, free from corrosive materials and electrically conductive
dust.
3.2 Installation direction
DBU100H must be installed in an upright position.
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