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Please, I want to know signals to be force logic in order to test the spark plug for frame VI using MK VI speedtronics electronic system, N.B. The system is ON cooldown.
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Mark6TA
Try L2TVX1 (or anything similar) after you took all the necessary precautions. Do not force L2TV itself.
>Please, I want to know signals to be force logic in order
>to test the spark plug for frame VI using MK VI speedtronics
>electronic system, N.B. The system is ON cooldown.
>Please, I want to know signals to be force logic in order
>to test the spark plug for frame VI using MK VI speedtronics
>electronic system, N.B. The system is ON cooldown.
Please, what is "N.B."?
<b>Moderator's Note:</b> Nota Bene Italian and Latin for Note Well.
The spark plugs should be removed for testing and earthed/grounded before applying power to them. There are only four bolts to remove for each plug, and quite often the gasket is not damaged when removing the plug. If there is ho unpainted surface to lay the plugs on to earth/ground them, a length of 12 AWG or equivalent wire can be used to connect them to a suitable eart/grind (strip a long length of insulation from one end of the wire and wrap it through one of the unpainted bolt holes).
The typical name of the signal is l2tvx1. Typically, the Mark VI output used for the power to the spark plug transformer/exciter has a fuse (on the TRLY card). The signal name assigned to the output relay is the signal name to force. Some, but not all, systems have additional relays/permissives which must be forced/satisfied; while many Mark VIs are similar, some are different depending on the site requirements (local technical codes and regulations, or packager philosophies).
Again, the spark plugs should be removed for testing--it's the ONLY way to visually see the intensity of the spark. And, it's the SAFEST way to test them, also. And, again, if removed for testing they must be properly earthed/grounded (something which is simple, but usually overlooked).
Finally, if the unit has DLN combustors, it's common for a second relay output to be used in parallel for redundancy. If so equipped, the two should be tested to ensure they both work properly. (This is primarily done only on DLN machines because the spark plugs (ignitors) are used during Premix-to-Lean-Lean combustion mode transfers when the unit is running with load; it's not desirable to trip the unit from load if at all possible so a second relay output is wired in parallel for redundancy).
Hope this helps!
<b>Moderator's Note:</b> Nota Bene Italian and Latin for Note Well.
The spark plugs should be removed for testing and earthed/grounded before applying power to them. There are only four bolts to remove for each plug, and quite often the gasket is not damaged when removing the plug. If there is ho unpainted surface to lay the plugs on to earth/ground them, a length of 12 AWG or equivalent wire can be used to connect them to a suitable eart/grind (strip a long length of insulation from one end of the wire and wrap it through one of the unpainted bolt holes).
The typical name of the signal is l2tvx1. Typically, the Mark VI output used for the power to the spark plug transformer/exciter has a fuse (on the TRLY card). The signal name assigned to the output relay is the signal name to force. Some, but not all, systems have additional relays/permissives which must be forced/satisfied; while many Mark VIs are similar, some are different depending on the site requirements (local technical codes and regulations, or packager philosophies).
Again, the spark plugs should be removed for testing--it's the ONLY way to visually see the intensity of the spark. And, it's the SAFEST way to test them, also. And, again, if removed for testing they must be properly earthed/grounded (something which is simple, but usually overlooked).
Finally, if the unit has DLN combustors, it's common for a second relay output to be used in parallel for redundancy. If so equipped, the two should be tested to ensure they both work properly. (This is primarily done only on DLN machines because the spark plugs (ignitors) are used during Premix-to-Lean-Lean combustion mode transfers when the unit is running with load; it's not desirable to trip the unit from load if at all possible so a second relay output is wired in parallel for redundancy).
Hope this helps!
