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CHAPTER 5 - KEYPAD (HMI) OPERATION
Inverter status:
Inverter is READY to be started.
Line voltage is too low for inverter operation
(undervoltage condition).
Inverter is in a Fault condition. Fault code
is flashing on the display. In our example
we have the fault code E02 (refer to
chapter Maintenance).
Inverter is applying a DC current on the mo-
tor (DC braking) according to the values
programmed at P300, P301 and P302
(refer to Chapter 6).
inverter is running self-tuning routine to
identify
parameters automatically. This
operation is controlled by P204 (refer to
Chapter 6).
5.2.2 Inverter Status -
HMI Display
NOTE!
The display also flashes in the following conditions, besides
the fault conditions:
inverter in overload condition (refer to Chapter
Maintenance).
Reference Backup
The last frequency reference, set by the keys the and
,is stored when inverter is stopped or the AC power is
removed, provided P120 = 1 (reference backup active is the
factory default). To change the frequency reference before
inverter is enabled, you must change the value of the parameter
P121.
5.2.3 Read-Only Variables
Parameters from P002 to P008 are reserved for the display
of read-only variables.
When the inverter is powered up, the display will indicate the
value of the Parameter P002 (output frequency value).
Parameter P121 stores the speed reference set by these
keys.
When pressed, it increases the speed (frequency) reference.
When pressed, it decreases the speed (frequency) reference.