Roberts Gorden Dualair DA260G Series, Инструкция по установке, наладке, обслуживанию и эксплуатации

Страница: 64 / 78

Page 52
8.2.1.2 Fault Display Messages
In case of a failure the LED is permanently illuminated for a period of approx. 10 seconds, followed by
a brief 'dark phase', then a flash code, which indicates the cause of the error. Therefore the following
sequence is performed which is repeated as long as the unit is not reset.
8.2.1 Satronic DKG 972 Control Information System
The information system is microprocessor based and reports on all aspects of burner control box
operation and flame supervision. It informs continuously about the actual programming sequence the
unit is just performing. Besides monitoring of the programming sequence it also allows to identify
errors during start up of operation without any additional testing devices. The automatically performed
diagnosis is a valuable tool which facilitates service/maintenance work and therfore saves costs. the
analyses of the error cause can be done directly on stage or if not possible afterwrds as the lockout
reason is stored in a non volatile lockout mode memory.
The information system communicates with the outside world using a LED (the used Flash Code is
similar to the Morse Code). The messages are optically transmitted by an appopriately flashing LED.
Using an additional terminal (optional), the messages can be recorded and displayed in easy readable
form.
8.2.1.1 Programming Sequence Display
The built in microprocessor controls not only the programming sequence but the information system
too. The individual phases of teh programming sequence are displayed as Flash Code.
The following messages can be distinguished:
MESSAGE FLASH CODE
Waiting time tw l l l .
Pre-ignition tvz l l l l .
Safety time ts & post ignition tn l .
Delay 2nd stage tv2 l l .
Running l _
Low mains voltage l _
Description:
l = short pulse
= long pulse
. = short pause
_ = long pause
Flash Code for Manual Lockout
manual/external lockout
l l _
Error Diagnosis
Error Message Flash Code Possible Fault
Lockout l
within lockout safety time no flame establishment
Lockout l l stray light during monitored phase, detector may be
faulty