Aircraft Overview - Devices

The following devices represent your aircraft, and will be used to generate your personalized electrical diagram, VP-X pinout and electrical build buying guide.

Instruments/Avionics

Dynon SkyView PFD
pin name	actual current draw	circuit breaker value	min wire size	VP-X pin	backup?	current fault detect?	switch	bank preference
Pilot EFIS	2.5A	5.0A	20g	J12-9	none	No	always on	Bank A
notes: Pilots Skyview 10
Dynon SkyView MFD
CoPilot EFIS	2.5A	5.0A	20g	J10-10	none	No	Avionics Master	Bank B
notes: Duplicate Skyview 10
Garmin SL 40 Com
SL 40 Comm	0.3A	5.0A	20g	J12-8	none	No	Avionics Master	Bank A
PMA5000Ex Audio
Audio Panel	2.5A	5.0A	20g	J10-4	none	No	Avionics Master	Bank A or B
Byonics RTG APRS
APRS	1.0A	5.0A	20g	J8-1	none	No	APRS	Bank A or B
notes: 10 watt transmitter.
Garmin GTN 750 (14v)
750 Nav	3.0A	8.0A	18g	J10-5	none	No	Avionics Master	Bank B
750 Comm	0.5A	10.0A	18g	J10-3	none	No	Avionics Master	Bank B
DynonTransponder
SV-XPNDR-261	0.4A	3.0A	20g	J12-10	none	No	Avionics Master	Bank A or B
Dynon ADS-B
SV-ADSB-470	0.2A	1.0A	20g	J1-2	none	No	Avionics Master	Bank A or B

Lights

Taxi Lt Left
pin name	actual current draw	circuit breaker value	min wire size	VP-X pin	backup?	current fault detect?	switch	bank preference
Taxi Lt Left	3.0A	5.0A	14g	J8-4	none	Yes	Taxi Lt	Bank A
notes: DIS HID current draw is 3.0amps each.
Nav lights (LED)
Nav lights-2	1.0A	2.0A	18g	J12-2	none	Yes	Nav Lt	Bank A or B
notes: AeroLED NSP180 LED Nav, LED Strobe, LED Position all in one. Nav current 0.4 amp avg each.
Panel Lights-LED
Panel LEDs	0.2A	5.0A	20g	J8-5	none	No	always on	Bank A or B
notes: Panel LED light strip. On dimmer with off selector.
Strobes-LED
Strobes	4.5A	10.0A	18g	J12-3	none	Yes	Strobe Lt	Bank A or B
notes: Avg Current 0.8 amp each side. Peak Current 2.25 amp each.
Landing Lt Right
Landing Lt Right	3.0A	5.0A	14g	J8-6	none	Yes	Landing Lt	Bank B

Accessories/Ignition/Other

Boost pump (fuel inj)
pin name	actual current draw	circuit breaker value	min wire size	VP-X pin	backup?	current fault detect?	switch	bank preference
Boost pump	4.5A	6.0A	18g	J12-7	none	Yes	Boost Pump	Bank A or B
ELT
ELT	1.0A	2.0A	20g	J8-8	none	No	always on	Bank A or B
Defrost Fan
Defrost Fan	2.0A	5.0A	20g	J8-7	none	No	always on	Bank A or B
notes: Hot power to panel switch then to fan. No switches left in VPX
Power Plug 5
Power Plug	3.0A	5.0A	20g	J8-3	none	No	always on	Bank A or B
notes: Panel accessory power outlet
Smoke System
Smoke Pump	4.0A	8.0A	18g	J12-1	none	Yes	Smoke	Bank A or B
Dynon AP Pitch
AP Pitch Servo	2.5A	5.0A	20g	J10-8	none	No	Auto Pilot	Bank A or B
Dynon Pitot
Pitot Dynon	10.0A	15.0A	14g	J10-6	none	Yes	Pitot Heat	Bank A or B
Dynon AP Roll Servo
AP Roll Servo	2.5A	5.0A	20g	J10-7	none	No	Auto Pilot	Bank A or B
CO Monitor
CO Monitor	1.0A	2.0A	20g	J1-1	none	No	Avionics Master	Bank A or B
ElectroAir Coil
ElectroAir Coil	1.6A	10.0A	18g	J8-2	none	No	always on	Bank A or B
notes: ElectroAir Coil Red w/wht stripe
EIS Ignition
EIS Power Switch	2.5A	5.0A	18g	J10-2	none	No	always on	Bank A or B
notes: ElectroAir Panel Switch

Electrical System

Plane Power Pri Alt
pin name	actual current draw	circuit breaker value	min wire size	VP-X pin	backup?	current fault detect?	switch	bank preference
Alternator Field	2.5A	5.0A	18g	J12-11	none	No	always on	Bank A or B
notes: This is the primary alternator field power.

VP-X Pinout and Configuration

• Pin: the actual pin number on the connector.
• Bank: The VP-X Pro has two independent systems in one box. Each system is referred to as a "bank" of circuits. This column shows which bank that specific power pin is on. See Installation manual for details on determining which device goes on which bank.
• VP-X Pin Name: Describes the function of that pin. 5A-1 for example is a 5 amp circuit and it is the first five amp circuit. 10A-3 is a 10 amp circuit and is the third 10 amp circuit.
• Power pin name: You can give each pin a name that shows on the EFIS display.
• Current draw: The actual current drawn by a device. It is recommended you measure the ACTUAL current draw of each device prior to installation in the aircraft using an ammeter (commonly available from a friend at no cost or from Radio Shack, Sears, and electronic supply stores for a reasonable one).
• Wire size: the wire size you have specified to go between the VP-X and the device being powered.
• Circuit Breaker: The maximum current allowed for that pin. You can enter any value between 1 and the limit of that pin in increments of 1A. This value is equivalent to a circuit breaker or fuse. If a load draws more than the Circuit Breaker value, that circuit will fault. If too large of a breaker value is used, then the wire may overheat or fail. If too small a value is used, then the device may fault the circuit because it draws too much current.
• Switch: The number of the switch input (switch input 1 through 10) you have specified to control this pin. Or it can be set to 'always on' or 'always off'. Each switch input is labeled 1 through 10. You can assign multiple devices to a single switch, and conversely, a switch can control multiple devices. If you set the circuit to 'always on', it will be on anytime the VP-X is powered (i.e. the master switch is on). Multiple pins can be assignedto a single switch. You don't have to use all of the switch inputs.
• Current Fault detect: The pin can be configured to detect a "current fault" or open circuit. When a circuit with this feature enabled is turned on and does not draw any current for 3 seconds, the circuit is faulted. You can use this to detect burned out lights, faulty boost pump, failed avionics fan, or inop heated pitot tube for example. The minimum detectable current is about 100ma, so this should be used on devices like lights, strobes and loads that draw at least 100ma of current.