Electrical connection |
23
8.4.1 Connection diagrams
3–phase motor with
optional thermal
contacts or cold
conductor.
Dahlander motor
with optional
thermal contacts or
cold conductor.
Motor, 2 windings
with optional
thermal contacts or
cold conductor.
8.5 Frequency converter (if used)
Risk from resonant frequencies when using frequency converter.
♦ Only operate the fan outside these speed ranges.
♦ Pass through these speed ranges so quickly that any vibration cannot exceed the admissible resonant frequency
values.
♦ For variable-speed fans, use a permanent vibration monitoring for long-term safe operation.
♦ Observe the operating instructions of the frequency converter.
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