AUTOFLAME Mk8 MM User Manual

13 Draught Control
Mk8 MM Manual Page | 243
# Default Range Description
86
10
DC: Commissioned Angle Variation Tolerance
During firing, if the draught servomotor angle is outside of the
commissioned variation tolerance for the time period set in expansion
option 85, corrections will be made on the stack damper.
0 – 60
0
O
– 60
O
87
0
DC: 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
DC: 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
DC: 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
DC: 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
DC: 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

AUTOFLAME Mk8 MM Specifications

General

Brand	AUTOFLAME
Model	Mk8 MM
Category	Controller
Language	English