09/08
Operating Instructions ACU
215
17.2
Fan
The switch-on temperature of the heat sink fan can be set with the parameter
Switch-on temperature
39.
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
Switch-on temperature
39
, the heat sink fan will be switched on, as soon
as the frequency inverter is switched on and enabled and the start signal is received.
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
Switch-on temperature
39 during this time since start-
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
Switch-on tem-
perature
39 for
the internal fan was reached
.
Like in the case of the internal heat sink fan, the minimum ON-time of the external
fan is 1 minute.
Parameter
Settings
No.
Description
Min.
Max.
Fact. sett.
39 Switch-on temperature
0 °C
60 °C
30 °C
17.3
Bus controller
Note:
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 output stage.
Warning!
•
Switch off power supply before connecting or disconnecting the
control inputs.
•
The unit may only be connected with the power supply switched
off.
•
Make sure that the frequency inverter is discharged.
•
When the frequency inverter is disconnected from power supply,
the mains, DC-link voltage and motor terminals may still be live for
some time. Wait for some minutes until the DC link capacitors have
discharged before starting to work at the unit.
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
215
09/08
Summary of Contents for Bonfiglioli Vectron ACTIVE CUBE ACU 201 Series
Page 1: ...ACTIVE CUBE Operating Instructions Frequency Inverter 230V 400V 0 25 kW 132 kW ...
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