SINUS PENTA
PROGRAMMING GUIDE
450/486
58. ALARMS AND WARNINGS
CAUTION
If a protection trips or the drive enters the emergency mode, the drive is locked and the
motor starts idling!
58.1. What Happens When a Protection Trips
NOTE
Before
operating the drive in emergency conditions, carefully read this section and the
following section, What To Do When an Alarm Trips.
The drive alarms are detailed below.
When a protection / alarm trips:
1) the ALARM LED on the keypad comes on;
2) the page displayed on the keypad is the root page of the FAULT LIST;
3) the FAULT LIST is refreshed;
4) when using the Drive Profile board, the drive reports faults as hexadecimal values, which are assigned and
coded according to the DRIVECOM specification. See Table 139
.
In factory-setting, when the drive is switched on after an alarm has tripped—which has not been reset—it is kept in
emergency condition.
If the drive is in emergency mode when switched on, this could be due to an alarm tripped before the drive was
reset.
To avoid storing the alarms tripped before the drive is switched off, set parameter C257 in the Autoreset Menu.
The drive stores the moment when an alarm trips to the FAULT LIST (supply–time and operation–time). The drive
status when the alarm tripped and some measures sampled when the alarm tripped are also stored to the Fault List.
The readout and storage of the fault list can be very useful to detect the cause responsible for the alarm and its possible
solution (see also the Fault List Menu).
NOTE
Alarms A001 to A039 relate to the main microcontroller (DSP Motorola) of the control
board, which detected a fault on the control board itself. No fault list is availab
Alarms A001 to A039
and no Reset command can be sent via serial link; alarms can be
reset through the RESET terminal on the terminal board or the RESET
key on the
keypad. No software for the keypad interface is available; the drive parameters and
measures cannot be accessed via serial link.
Avoid resetting alarms A033 and A039
, as they trip when the flash memory is not
provided with its correct software. Alarms A033 and A039
can be reset only when proper
software is downloaded for the the inverter flash memory.
CAUTION
Before resetting an alarm, deactivate the ENABLE-A and ENABLE-B signals on
terminal MDI2
to disable the inverter and prevent the connected motor from running at
uncontrolled speed, unless parameter C181=1 (the Safety Start function is active): after
resetting an alarm or after supplying the inverter, this will start only if the ENABLE-A and
ENABLE-B contacts are opened and closed again.
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