Page 9
PPS Installation and Operating Manual
Rev. C.2 (January 19, 2018)
4. Installation and Test
Installation of the PPS is accomplished in four main steps. Following
these steps will increase the likelihood of a trouble-free electrical system.
Taking time to plan your electrical system will pay big dividends later on.
•
Planning
•
Installation
•
Ground Test
•
Flight Test
4.1 Planning
It is a good idea to spend time on the planning stage whether you are
installing a simple or a complex aircraft electrical system.
A wiring harness for the PPS circular connector is available to simplify
the installation of electrical system.
The wiring diagrams in this section illustrate typical basic installations
with traditional wiring and with the Vertical Power VP-X electronic
circuit breaker system. Wiring diagrams also show alternate or advanced
installation options that may or may not be needed for your installation.
Utilize this manual and the wiring diagrams to create a plan for your
aircraft wiring prior to performing the installation.
4.1a Tools and Supplies
This is a generic list of items to assist with planning. Some items may
vary depending on the requirements of your specific installation.
•
Crimper - insulated terminals 20 AWG
•
Crimper - TE Connectivity Hand Crimper 601966-1 (or
equivalent) and TE Connectivity Positioner 601966-5 (or
equivalent)
•
Crimper – terminals for 2 to 8 AWG wire
•
Stripper – for wire 20 AWG
•
Heavy gauge wire for “main” power runs
•
Battery contactor (optional for remote mounted battery)
•
Alternator(s) and voltage regulator(s)
•
Switches
•
Indicators
4.1b Wiring Diagrams
The following wiring diagrams provide an overview for wiring the PPS
in traditional systems, systems with the Vertical Power VP-X, and in
systems with an AFT mounted battery.
+
-
Battery
STARTER
F
B
PRI
ALT
F
B
Backup
ALT
Optional
MAIN BUS
on-off-on
Notes:
1. The GND Stud connection to the PPS shall be ≤ 2.5 mΩ. Failure to
meet this requirement will damage the PPS and lead to an unsafe condition.
2. External voltage regulator and overvoltage protection module not shown
(may or may not be needed, depending on alternator)
Alt Field
Switch
GND Stud (see note 1)
PPS wiring overview with traditional wiring
Note: Alternator field switch shown if for example purposes only. Other
variants that achieve the same function electrically can be used, such
as two individual switches, a split master/alternator switch, and other
common variants.
