10
Service
Acknowledging error messages
Operating Instructions – Compact Extra-Low Voltage Drives
75
10.5
Acknowledging error messages
WARNING
Eliminating the cause of the problem or performing a reset may result in the drive re-
starting automatically.
Severe or fatal injuries.
• Prevent unintended startup.
Acknowledge the error message by activating the digital inputs
IN
A or
IN
B. The error
is acknowledged and the function of the input is simultaneously selected depending on
the operating mode. Alternatively, acknowledge the fault message by switching the
DC 24 V control voltage off and on again.
10.6
Device replacement
WARNING
Unauthorized startup of the system.
Severe or fatal injuries.
• Additional measures must be implemented (e.g. mechanical disconnection) to
prevent unauthorized movement of the system.
WARNING
Improper installation/disassembly of drive units and mount-on components.
Risk of injury.
• Adhere to the notes about installation and disassembly.
• Before releasing shaft connections, make sure that there are no active torsional
moments present (tensions within the system).
10.6.1
Replacing the drive unit
1. Observe the safety notes.
2. Disassemble the drive unit. Observe the chapter "Mechanical installation".
3. Compare the data on the nameplate of the old drive unit with the data on the
nameplate of the new drive unit.
INFORMATION
Always replace the drive unit with a drive unit that has the same properties.
4. Mount the drive unit. Observe chapter "Mechanical installation".
5. Perform the installation according to the "Electrical installation" chapter.
6. Supply voltage to the drive.
7. Check the new drive unit for proper functioning.
26718014/EN – 11/2020
