28
5
Firing Rate Controller (optional)
5.1.7
Manual Control
CAUTION!
In manual mode, the firing rate controller’s functions such as startup circuit and control ther-
mostat are switched off. Therefore you should always monitor the system continuously when
using manual control. You can check the safety limiter by changing the setpoint.
5.2
Control Setting
5.2.1
Meaning of the Display
5.2.2
How to Adjust the Burner Firing Rate Controller
Only adjust the burner firing rate controller with the parameters.
The output controller’s firing rate specification can be
overwritten by turning the selector switch (2) to LOAD
RATING (firing rate) and pressing the Channel 1 switch
(4) upwards.
This manual firing rate control is cancelled by pressing
the Channel 2 switch (4) downwards.
In manual mode, the shut-off limit can be found in Func-
tion (from software version 3.1 onwards). Hence you
cannot use the manual mode to test the safety limiter.
Display in "FIRING RATE" switch position
setpoint
actual value
regular firing
rate input
internal
firing rate
Display in mode "MANUAL"
regular firing
rate input
(via channel 1)
internal firing
rate
actual value
Summary of Contents for VMS 4
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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...
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Page 143: ...142 10 Appendix 10 15 Protocol Example...
Page 144: ...143 10 Appendix 10 16 O2 Setpoint Curves...
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