PRESSCON N-Gen, User Manual

Page: 14 / 19

Page 14 of 19
5 Alarm and error handling
5.1 Multi-F
5.1.1 Alarm button
There is a red alarm button on the right side of the switch panel. The red button will light up as soon as the Multi-F controller of the
N-Gen nitrogen generator receives an alarm signal. The Multi-F controller has 1 digital input to which an alarm signal can be
connected. These can be alarm signals of, for example, temperature protection or thermal protection of the compressor or a
pressure switch that indicates the minimum compressed air pressure of the nitrogen generator. Which alarm it is depends on what
is connected to the digital input. This will usually be the pre-pressure alarm for the N-Gen nitrogen generator, which indicates that
there is too little compressed air pressure for the nitrogen generator. By pressing the button an attempt can be made to reset the
alarm.
Reset
Figure 8. Alarm button no alarm
Reset
Figure 9. Alarm button active alarm
5.1.2 Faults and alarms
When an alarm occurs, this will be reported via the red button on the side of the switch panel. It lights up when one or more alarms
have occurred. The N-Gen nitrogen generator therefore has two alarm levels.
If one of the alarms occurs, the nitrogen generator is stopped and the main valve and the drain valve are closed. The nitrogen
generator is still completing its cycle. In short, during an alarm, the nitrogen generator will:
- Stop generating nitrogen;
- Close the drain valve;
- Close the main valve;
- Light up the red alarm button.
!
The N-Gen will respond the same to each of the alarms below. All alarms have the same urgency and the priority of
which depends primarily on the nitrogen demand from other machines.
5.1.3 Alarm messages
EEPROM errors
F01 Eeprom adres An address fault has occurred.
F02 Eeprom adr0 ,,
F03 Eepromcomm There is no communication with the Eeprom.
Can errors
F04 Canbus halt The Canbus could not send or receive.
F05 CanrxFifo The receive buffer of the Canbus is full.
F06 CanrxMBox The receive messagebox of the Canbus is full.
F07 CantxFifo The send buffer of the Canbus is full.
RTC errors
F08 RTC comm. There is no communication with the RTC.
F09 RTC new The RTC is not set.
RS232 errors
F10 Uart1 rxFifo The receive buffer of the RS232 is full
F11 Uart1 txFifo The send buffer of the RS232 is full
Alarm level: 0
System free of faults.
The red reset button is not lit.
Alarm level: 1.
An alarm has occurred.
The red reset button lights up.