120
Servicing
Installing new software version
Procedure for installation of
Insert EPROMs
new software in the FMS
Monitoring EPROM on card top left
Main processor EPROM on card bottom left
Power On
-
Display: LAMTEC FMS 4/5
-
Self tests
___________________________________________________________________
Please remember that the installation of modified software in a system
that has already undergone acceptance will require a new acceptance or
at least approval of the modification by the competent authorities. The
new EPROM numbers (displayed during the start-up self-tests) are to be
inserted accordingly.
___________________________________________________________________
Replacing the
The relais module for controlling yhe valves is subjected to abrasion
relais moduel 660 R 0016
This abrasion depends upon the load of the contacts and the numbers
of the working cycle.
___________________________________________________________________
For safet reasons the relais module 660 R 0016 is to be renewed after
250 000 starts.
___________________________________________________________________
The starts, the FMS has passed already, are shown under the function
"Calling up running time meter" (q.v. page 78).
The starts, on all curve sets have to be added together.
When the sum reaches 250 000 the relais module has to be replaced.
_____________________________________________________________________________________________________
Diagnoses mode
valid only for relay module type 660 R 0016 since version V4.3
One ofthe ouputs, which are tested during burner start, has recognised a fault.
To diagnose the faults H 921 and H 925, you may change to the diagnosis
mode. The changing will be done with plugging or unplugging the jumper B
on the relay module (see chapter "Diagnosis Mode" on p. 120).
The faults H 921 and 924 are shown in standard mode, the allocation of
output and fault is still unclear.
Procedure to localise a fault:
- switch off the power supply and the FMS
- open the relay module
- plug in jumper B
- reactivate the power supply and the FMS
- watch the LEDs during the ignition process
- the LED which flashes at least before the fault and the shut down, is the
one, the output recognises as faulty.
Standard (B open) = indication is defined during ignition
Diagnosis (B close) = indication undefined, directly
If a fault at R16 V4 occurs while the burner is running, a forced shut down
follows. Different, undefined FMS fault shut downs may be generated.
This depends on how the process proceeds and which fault the FMS
recognises first.
If the burner flame goes out rapidlyafter a valve cutt off, the FMS generates a
fault of the flame.
Trouble shooting:
- check the wiring, is there a load conneted to the output
- check the fuse of the concerned output
- if the fault is still pending: exchange the relay module.
!
