AUTOFLAME Mk8 MM - Page 60

Fault Message Description
500 Multi-Burner Communications
Fault
Loss of comms between MMs in multi-burner loop
 Alarm
 Check wiring on terminals 23 and 24 on all MMs in multi-burner loop
501 Multi-Burner Version
Mismatch
Software versions of MMs in multi-burner loop do not match
 Alarm
 Check that software versions of MMs in multi-burner loop match
502 Multi-Burner Not Polled MM in multi-burner loop has been detected but not polled
 Alarm
 Check option 51 on master MM
 Check wiring on terminals 23 and 24
503 Multi-Burner Config (Multi-
Burner Mode)
Multi-burner mode is not the same for all MMs in loop
 Alarm
 Check option 43 on all MMs in multi-burner loop
504 Multi-Burner Config (Fuel
Index)
Same fuel number must be selected on all MMs in multi-
burner loop
 Alarm
 Check which fuel is selected on all MMs in multi-burner loop
 Check wiring on terminals 89, 90, 91 and 92
505 Multi-Burner Config (Fuel
Type)
Fuel type is not the same for all MMs in multi-burner loop
 Alarm
 Check option/parameters 150 – 153 on all MMs in multi-burner loop
506 Multi-Burner Config (Pilot
Type)
Pilot type not the same for all MMs multi-burner loop
 Alarm
 Check option/parameter 111 on all MMs in multi-burner loop
507 Multi-Burner Config (Load
Sensor)
Load sensor not set the same for all MMs in multi-burner loop
 Alarm
 Check option 1 on all MMs in multi-burner loop
550 Fuel Flow Meter Fault Less than 3mA signal received from fuel flow meter
 Alarm or warning depending on expansion option 152 (if set to warning, the MM will use the
commissioned value without any fuel or air servomotor adjustment)
 Check wiring and screen on terminal MF and F-
551 Air Flow Meter Fault Less than 3mA signal received from air flow meter
 Alarm or warning depending on expansion option 152 (if set to warning, the MM will use the
commissioned value without any fuel or air servomotor adjustment)
 Check wiring and screen on terminal EX+ and EX-
552 Fuel Temperature Sensor
Fault (T2)
Fault or no comms with T2 sensor
 Warning (MM will use commissioned temperature)
 Check wiring and screen on terminals – and T2
553 Air Temp Sensor Fault (T3) Fault or no comms with T3 sensor
 Warning (MM will use commissioned temperature)
 Check wiring and screen on terminals – and T3
Page 55 Mk8 MM End User Guide 22.05.2017
4 Errors and Lockouts