11
Inspection and maintenance
Cleaning the drive
Operating Instructions – Compact Extra-Low Voltage Drives
78
11
Inspection and maintenance
WARNING
Risk of injury if the drive starts up unintentionally.
Severe or fatal injuries.
• Before starting work, de-energize the drive via a suitable external disconnection
device.
• Secure the drive against unintended re-connection of the voltage supply.
• Secure the output shaft against rotation.
WARNING
Danger of burns due to hot surfaces of the device (e.g. the heat sink).
Serious injuries.
• Do not touch the device until it has cooled down sufficiently.
NOTICE
Damage to the drive.
Potential damage to property!
• Note that only
SEW‑EURODRIVE
Service or specialists trained by
SEW‑EURODRIVE are allowed to carry out motor and/or brake maintenance.
11.1
Cleaning the drive
Excessive dirt, dust or shavings can have a negative impact on the function of syn-
chronous motors; in extreme cases, these factors can cause the motor to break down.
For this reason, you must clean the drives at regular intervals (after one year at the
latest) to ensure a sufficiently large area for heat dissipation.
Insufficient heat dissipation can have unwanted consequences. The service life of the
bearings and the inverter is reduced through operation at impermissibly high tempera-
tures, because the bearing grease degrades.
11.2
Connection cables
Check all connection cables for damage or signs of fatigue at regular intervals. Re-
place if necessary.
11.3
Inspection and maintenance intervals
INFORMATION
The amount of wear depends on many factors and may be high. The system manu-
facturer must calculate the required inspection/maintenance intervals individually in
accordance with the project planning documents.
26718014/EN – 11/2020
