AUTOFLAME Mk8 MM Installation And Commissioning Guide

2 Expansion Options
Page 18 Mk8 MM Expansion Features Installation and Set-Up Guide 04.09.2016
Exp
Option
Default Range Description
87 0 Pressure Tolerance Before Fault
This is the maximum variation from the commissioned draught air pressure.
If the pressure is at this maximum variation or higher for 2 minutes, then an
alarm/warning is generated, see expansion option 88.
0 Disabled
1 – 500 0.1 – 50.0 mbar or 0.1 – 50.0 ”WG (see parameter 43)
88 0 Action on Pressure Sensor Fault
For setting 0, an alarm will occur and the burner will stop firing. For setting
1, a warning will occur and the burner will continue firing, with the draught
servomotor will move to the commissioned angle throughout the firing
curve, without any draught control compensation.
0 Draught pressure sensor fault generates alarm
1 Draught pressure sensor fault generates warning
89 15 Pressure Sensor Filter Time
This is the time period over which the draught air pressure sensor readings
are filtered over time. If there is excess fluctuation in the pressure readings,
increase the filter time. To improve the system’s response to changes in
pressure, decrease the filter time.
1 – 60 Seconds
90 200 Proportional Band
The proportional band is an offset from the commissioned draught air
pressure, where the PI control will make corrections to maintain the
commissioned air pressure.
1 – 10000 2.00 – 100.00 mbar or 2.00 – 100.00 ”WG (see parameter 43)
91 5 Integral Time
For a slower response to the changes in draught air pressure, increase the
integral time. For a quicker response, decrease the integral time.
1 – 1000 Seconds
92 - Unused
93 - Unused
94 - Unused
95 - Unused
96 - Unused
97 - Unused
98 - Unused
99 - Unused
100 0 Sequencing/DTI or Modbus Function
To enable direct Modbus, the Modbus expansion feature must be unlocked.
If direct Modbus is enabled, then option 16 must be set to 0, as Intelligent
Boiler Sequencing cannot be used with direct Modbus. Please see section
4.2 for the available Modbus addresses.
0 MM/DTI Sequencing
1 Modbus

AUTOFLAME Mk8 MM Specifications

General

Brand	AUTOFLAME
Model	Mk8 MM
Category	Controller
Language	English