AUTOFLAME MK8 User Manual

4
General Features
Flame Safeguard (MM80001/FSG) Manual
Page | 76
4.3 Terminals 80 and 81 Functions
4.3.1 T80 Functions
Option/parameter 154 controls the function of terminal 80 and must be set to 1: Start Position Interlock when used
in flame safeguard mode.
Setting it to other values will result in an Options/Parameters mismatch lockout.
Start position interlock
Terminal 80 acts as a live input in response to a mechanical end stop. Allows
an additional safety check on the valves and damper to ensure that they are in
the correct position for start/low fire using end limit switch.
Please check Autoflame Valves Guide for further details.
When set up as an On/Off burner this is a live input after the completion of the
purge sequence to initiate the start-up process.
4.3.2 T81 Functions
Option/parameter 155 controls the function of terminal 81 and must be set to 1: Purge Interlock when used in flame
safeguard mode.
Setting it to other values will result in an Options/Parameters mismatch lockout.
Purge interlock
Terminal 81 acts as a live input in response to a mechanical end stop. It must
be made for the whole of the timed purge and post purge phases, otherwise a
lockout is triggered. This input must not be made while not at purge.
When set up as an On/Off burner this is a live input after a 5 second delay to
run the burner start up purge sequence.

AUTOFLAME MK8 Specifications

General

Brand	AUTOFLAME
Model	MK8
Category	Controller
Language	English