Service and maintenance
12
12.1 Cleaning the components
Description
It is not intended that the device is cleaned. Do not use any cleaning agents for the devices.
12.2 Forming DC link capacitors
Overview
If the Line Modules and Motor Modules are kept in storage for more than 2 years, the DC link
capacitors have to be reformed. If this is not performed, the components could be damaged
when they are switched on.
Requirement
WARNING
Electric shock due to the residual charge of the DC link capacitors
Due to the DC link capacitors, a hazardous voltage is present in the DC link for up to 5 minutes
after the power supply has been switched o.
Contact with live parts can result in death or serious injury.
• Do not open the protective ap of the DC link until 5minutes have elapsed.
• Check that the cabinet is in a no-voltage condition.
CAUTION
Burns resulting from high surface temperature of the PTC resistors
The resistors can reach a high temperature if there is a fault in the component (surface
temperature > 80°C). You can get seriously burnt when touching the surface.
• Mount the PTC resistors so that contact is not possible. If this is not possible, attach clearly
visible and understandable warning notices at hazardous positions.
Components, whose storage period of 2 years has been exceeded:
• The storage period is calculated from the date of manufacture and not from the date that the
equipment was shipped.
• Refer to the serial number on the rating plate for the date of manufacture.
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA 311
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