Vertical Power VP-X Pro - Alternator - Rotax, Jabiru, or UL Power Engines

Page 33
VP-X Installation and Operating Manual
Rev. D (August 5, 2020)
5.9f Alternator – Rotax, Jabiru, or UL Power engines
Contact Vertical Power support for the latest on PPS integration with these
three engines.
Rotax, Jabiru, and UL Power engines have a built-in alternator/generator with
their own regulator that typically mounts on the engine side of the rewall.
They do not provide a standard method to turn on and off the alternator from
the cockpit.
If you want to leave the alternator in its standard conguration where it
is always on, then follow the manufacturer’s instructions (shown below
describing VP-X integration).When conguring the VP-X, disable the primary
alternator circuit. (Note: SkyView users should leave it enabled until a
future SkyView Software release supports the disabled alternator function,
otherwise an alternator alarm will be on during the ight).
If you want to switch the alternator on and off, then insert the optional relay
as shown in the diagrams below and control using the VP-X alternator control
circuit, J12-11.
See the diagrams below for wiring overview.
Rotax
Regulator
G G R B+ L C
Rotax
Generator
25A Fuse
+
Batt
Starter
Contactor
Battery
Contactor
VP-X
R R
To VP-X J12-11
Optional relay to provide alternator
on-off switching capability
C
NO NC
Rotax Installation
+
Batt
Starter
Contactor
Battery
Contactor
VP-X
R R
To VP-X J12-11
Optional relay to provide alternator
on-off switching capability
C
NO NC
Jabiru Installation
Starter
Contactor
Battery
Contactor
VP-X
Battery
Regulator
Alternator
R R
To VP-X J12-11
Optional relay to provide alternator
on-off switching capability
C
NO NC
UL Power Installation
The wiring diagrams shown above are for reference only to show how the
VP-X ts into the overall bus architecture. You should consult the engine
manufacturer’s manual for the latest details and notes.
Use 6 AWG or 8 AWG wire from the battery contactor to the VP-X.