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3 System Description
3 System Description
The CMS is a failsafe modular burner control system that can be customised to control com-
bustion systems from simple single fuel burners to complex multi-fuel burners with up to four
fuels. The minimum possible configuration is a single MCC which cam provide the functionality
of a burner sequencer with bus interface.
The burner sequencer is equipped with:
• 1 input for a flame sensor
• 12 failsafe digital inputs
• 9 failsafe digital outputs
• 1 non-failsafe analogue input
• 1 non-failsafe analogue output
With the help of configuration software, the inputs and outputs can be assigned required to
predefined functions for a gas burner (e.g. air pressure monitor, gas pressure monitor for valve
leakage test, minimum gas input pressure, etc.). With an oil burner, the terminal assignment
may differ from that for a gas burner.
The input for the flame sensor can be configured as appropriate for optical flame sensors
FFS07 and FFS08 or for ionisation monitoring.
In the full configuration, the following can be integrated within the CMS:
• 1 flame sensor
• 60 failsafe digital inputs
• 41 failsafe digital outputs
• 10 control channels for the electronic ratio control
• 9 failsafe analogue inputs or 18 non-failsafe analogue inputs
CO/O
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control for the burner is also possible using a suitable LAMTEC flue gas analyser/
probe combination.
Devices available for configuring parameters and operating the system include the graphical
user interface UI400 as well as the touch screen panels GUI607, GUI610 and GUI615 (in
three separate sizes).
CMS Remote Software is also available.
3.1 Brief Description
The CMS can adjust up to 10 control output channels defined in user-programmable curve
sets to modulate the burner through the firing range. The firing rate can be defined using in-
ternal PID control or can be set from an external tracking signal (4-20 mA or Fieldbus).
In the standard configuration, 2 curve sets (e.g. for oil or gas) can be stored. In addition, up to
16 curve sets are optionally available.
Up to 4 fuels can be defined.
Up to 10 control element outputs can be defined, e.g.
• Fuel valve
• Flue gas fan
• Flue gas damper
• Recirculation fan
• Combustion air damper
• Combustion air fan
• Atomiser steam
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