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Electrical connection
8.3 System integration
8.3.3
Connecting a separately driven fan
Connection notes
The fan connection is a size M23 power connector.
● Use only cables that comply with the installation regulations.
● Before connecting the device, make sure that the line voltage matches the device
voltage.
● Check whether the data on the fan rating plate matches the connection data.
● Lay the connection cables without tensile stress.
NOTICE
Damage to the fan when inappropriately operated
As supplied, the external fan does not provide an independently functioning protection
against improper operation (blocking protection). The device can become hot and start to
burn.
• Use blocking protection (stall protection) to protect the fan against inappropriate
• Provide a protective circuit that prevents the main motor from being switched on when
384
operation. To do this, use a suitable motor circuit breaker where all poles can be
disconnected or an appropriate activation device for the PTC thermistor. Operate the fan
using the motor circuit breaker.
the fan is not in operation.
S-1FT7 synchronous motors
Configuration Manual, 09/2018, A5E45099423B AA
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