8
magneto, revise your starting procedures, and/or remove any key switch starting blocks (remove
the jumper on the back of the key switch) to your E-MAGs.
Note 4: Whenever the aircraft bus is powered ON
, the ignition is “awake”. It draws a small amount
of current (approx. 40 milliamps) even when not firing plugs. Use the master bus switch (or
breakers if necessary) to power down the ignitions when not in use.
Note 5: Do not power the ignition ON when you have a ground battery charger connected to the
bus. Pulling the breaker will isolate the ignition when charging.
Note 6: Collect your tach signal from only one ignition unless your instrument has provisions for
two (separate) tach inputs. Unlike a magneto, E-MAGs produce a tach signal even when kill switch
is turned to OFF.
Note 7: Tach signal is a 3 pulse/rev, low true, 33% duty cycle, 10-12-volt pulse - see Appendix 3..
E-
MAG’s tach output is a courtesy feature, unrelated to the ignition’s primary purpose. Due to the
variety of instrument options available, our ability to support and troubleshoot interface issues is
limited.
Note 8: Longer cable runs to a remote main battery* may need to access bus power through a
dedicated 16 AWG cable connected directly to the battery. This will avoid sharing a long power
cable with the starter motor, a combination that can exaggerate power dips during startup and
inhibit ignition operation when cranking.
*Typical in RV10s, some canards, and others.
Setup and Control Switches
1) Configuration Button
(“Button”) is located beneath a black plastic screw cap on the end face
of the ignition. The Button is used to set TC, move MIN/MAX setpoints, or change ignition DIR.
2) Mode Switch
(optional)
– Fixed Mode or Variable Mode can be selected by a single cockpit
Mode Switch that directs both left and right (Series 200) ignitions. Fixed Mode is enabled when
the Mode Switch applies a 1K bias resistance to the kill circuit(s). The Mode Switch can serve
one or two (Series 200) ignitions
.
The Mode Switch is required for all boosted engines. For
non-boosted engines the Mode Switch can be eliminated, in which case the ignition will operate
in Variable Mode only.
a) Fixed Mode
-
Mode Switch “FIX” will fire plugs at the MIN firing position.
RPM must be
above cranking speeds
– i.e. you cannot start in Fixed Mode. [In FW V55 and after, Fixed
Mode starting is enabled]
b)
Variable Mode
- Mode Switch
“VAR” allows RPM and MAP inputs to select a plug firing
position between the MIN and MAX boundaries.
3)
Power Test Switch
- A cockpit power interrupt switch will be used to test the ignition internal
alternator. A switchable circuit breaker or separate test switch can perform this function.
– see
Wiring Diagram
4)
Kill Switch
(p-lead switch) - The traditional cockpit ignition ON/OFF (Left/Right) test switch is
unchanged. The Mode Switch does not interfere or alter Kill Switch operation. The Kill Switch
