10
1
General Information
The operating states are predefined in the VMS through potential-free contacts
–
Burner on
–
Control enabling
–
Pre-purge
–
Recirculation enabling
–
Flame signal
–
Fuel selection
The unit is of error-proof construction.
1.3.2
Purpose Internal Firing Rate Controller
This software option enables the calculating of the burner's required firing rate setting contin-
uously for a specified setpoint value (referred e.g. to temperature or pressure), through com-
parison with the actual value. This firing rate setting can be notified internally to the electronic
fuel/air ratio control as the specified value.
1.3.3
Purpose of Internal O
2
Trim
This software function makes it possible to regulate one or several actuators independently of
a switched-on O
2
actual value. By using a self-optimising controller strategy, it is also possible
to regulate burners with frequent firing rate changes.
Summary of Contents for VMS 4
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Page 119: ...118 10 Appendix...
Page 129: ...128 10 Appendix Fig 10 9 Ger t 4 Ger t 5 with output regulator...
Page 141: ...140 10 Appendix 10 14 Declaration of Conformity...
Page 142: ...141 10 Appendix...
Page 143: ...142 10 Appendix 10 15 Protocol Example...
Page 144: ...143 10 Appendix 10 16 O2 Setpoint Curves...
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