Connecting
5.4 System integration
1FK7 G2 synchronous motors
Operating Instructions, 05/2021, A5E50907562B AA
81
5.4.3
Connecting the forced ventilation
The fan connection is a size M23 power connector.
Table 5- 1
Connection data for external fans for 1FK7
Shaft height
Max. current consumption at
230 V / 50 Hz (±10 %)
in A
230 V / 60 Hz (±10 %)
in A
80
0.40
0.40
Note the following information regarding connections:
•
Only use cables that comply with the relevant installation regulations regarding voltage,
current, insulation material, and load-carrying capacity.
•
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.
•
Connection cables must not be subjected to excessive tensile stress.
NOTICE
Damage to the fan when inappropriately operated
The fan can be destroyed if inappropriately operated.
•
Use blocking protection (stall protection) to protect the fan against inappropriate
operation. To do this, use a suitable circuit-breaker where all poles can be opened.
Operate the fan using this circuit-breaker.
•
Provide an interlocking circuit that prevents the main motor from being switched on
when the fan unit is not operational.
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