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4 System Operation
4 System Operation
4.1 Mode Display
4.1.1 Mode Abbreviations Used
ON → SWITCH-ON SEQUENCE
BE → READY
ZÜ → IGNITION POSITION
EZ → SETTING/IGNITION
GL → BASE FIRING RATE
EG → SETTING/BASE FIRING RATE
NA → POST-PURGE
AU → OFF
EI → SETTING
SL → CLEAR MEMORY
EV → SETTING/PRE-PURGE
ES → SETTING/CONTROL
ST → FAULT
VO → PRE-PURGE
HA or HAND → MANUAL MODE
LE → FIRING-RATE EXTERN
no indication → CONTROL MODE
BE indicates that the signal is present on terminal 2, and all other signals = 0
If the FMS controls a flue gas damper, it opens. It is possible to switch to
SETTINGS.
ZÜ
EZ
indicates that pre-purge is finished and the ignition position relay pulls
on. The FMS is in the ignition position, but the flame signal is absent.
Switching to SETTING merely causes the mode display to switch to EZ.
Programming is not possible in this mode.
GL
EG
indicates that the burner is on (terminal 8=1), but the control release is
absent (terminal 4=0). The FMS therefore remains in base firing rate
position.Switching to SETTING merely causes the mode display to
switch to EG. Programming is not possible in this mode.
NA indicates that the FMS is in post-purge mode.
All signals = 0
All air channels open. When the configured time has elapsed, the FMS
changes to AU mode.
AU indicates that the FMS is OFF. All control elements closed.
Selector switch on AUTOMATIC, all signals = 0
EI indicates that the mode selector switch is on SETING. Single points can
now be altered or new curves can be entered.
SL indicates that the mode selector switch is set to CLEAR MEMORY. By
pressing the ENTER key the existing curve is cleared and a new curve
can be entered.
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