The controller is generally installed in the control cabinet of the elevator equipment room.
Pay attention to the following points when designing the control cabinet:
1. The temperature inside the cabinet must not rise to 10°C higher than the temperature
outside the cabinet.
2. A closed control cabinet must be congured with a fan (or other air cooling device such as
air conditioner) to ensure air circulation.
3. The air from the fan must not blow directly to the drive unit because this easily causes
dust adhesion and further a fault on the drive unit.
4. A vent must be available at bottom of the control cabinet to form bottom-up air ow, which
prevents heat island effect on the surface of components or partial thermal conductivity
effect.
5. If the fan cannot meet the cooling requirements, install an air conditioner in the cabinet
or in the equipment room. Note that the temperature inside the cabinet must not be too low;
otherwise, condensation may occur, causing short-circuit of components.
6. For special environment where the temperature is high but cannot be reduced effectively,
de-rate the controller during use.
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