Fan; Bus Controller - BONFIGLIOLI ACTIVE Cube ACU 201-01 Operating Instructions Manual

18.2

Fan

The switch-on temperature of the heat sink fan can be set with the parameter
Switch-on temperature
If mains voltage is applied to the frequency inverter, and the heat sink temperature
exceeds the set temperature, the heat sink fan is switched on. Independent from
parameter
as the frequency inverter is switched on and enabled and the start signal is received.
To protect the device a device fault is triggered when reaching an internal switching
off temperature threshold.
If the heat sink temperature drops below the set temperature by 5 °C, or if the con-
troller enable signal is inhibited, the heat sink fan is switched off when the minimum
ON-time has elapsed.
The minimum ON-time of the heat sink fan is set internally to 1 minute. When the
temperature drops below the
ing, the fan will continue to operate until the running ON-time is reached.
Operation mode 43 for digital outputs additionally enables the control of an ex-
ternal fan. Via the digital output, the fan is switched on if the controller is released
and Start clockwise or Start anticlockwise are switched on, or if the
perature
Like in the case of the internal heat sink fan, the minimum ON-time of the external
fan is 1 minute.
No.
39 Switch-on temperature
18.3

Bus controller

DANGER
Disconnect the frequency inverter from mains voltage and protect it against being
energized unintentionally.
Verify that the frequency inverter is discharged.
Wait for 3 minutes until the DC link capacitors have discharged before starting to
work at the unit.
When the frequency inverter is disconnected from power supply, the mains, DC-link
voltage and motor terminals may still be live for some time.
In order to be able to control the drive, the digital controller inputs S1IND/STOA and
S7IND/STOB must be connected and set to "High-Signal" in order to enable the out-
put stage.
The frequency inverters can be extended by different options for data communication
and can be integrate in an automation and control system in this way. Parameteriza-
tion and commissioning can be done via the optional communication card, the oper-
ating unit or the interface adapter.
Operating Instructions ACU
06/13
39.
Switch-on temperature
Switch-on temperature
the internal fan was reached
39 for
Parameter
Description
39, the heat sink fan will be switched on, as soon
39 during this time since start-
.
Settings
Min.
0 °C
Switch-on tem-
Max. Fact. sett.
60 °C 30 °C
241