Ford TRANSIT 2016.75 Mounting Manual page 127

If immediate Relay Contact Close signal is
activated continuously via a latched switch, it
overrides the key off timer providing the batteries
in the system are above the low voltage threshold.
The relay contacts will stay closed until the
batteries go below the low voltage threshold. This
may be used to extend engine off power duration,
however, it is not recommended to use the feature
permanently. There will be a disconnect if ignition
position 2 is selected, for example during a crank
event. See Cold Crank Aid in this section of the
manual. For system specific questions if
uninterrupted power is required, please contact
your National Sales Company representative, or
local Ford dealer. If they are unable to help you
then please contact the Vehicle Converter
Advisory Service at VCAS@ford.com
Immediate Relay Contact Open: If OPEN relay
signal is activated, it will immediately open relay
contacts and override all other functions until next
key ignition cycle and the switch is deactivated.
When a new key cycle is detected (Ignition
Position 0 then 2), the module will go back to
normal operation. If the signal is still activated
regardless of ignition state, the relay contacts
remain open. This system should not be used as
an emergency stop. A separate emergency stop
for safety critical systems must be included in the
third party system.
Engine Run Alternator Protection: When
voltage is detected below low voltage threshold
for 5 seconds continuous during an Engine Run,
FPBG will activate SRC Inhibit output until next
engine off state is achieved. This is to protect the
alternator under engine run if there is not enough
capacity under the SRC voltage to support
immediate high power loads. After activation of
the SRC Inhibit output the system will assess the
voltages for 15 seconds. When the voltage is
detected higher than 12.8V the system will keep
the relay contacts close. When voltage is detected
below 12.8V the system will open the relay
contacts for 4 minutes. When 4 minutes
open-contact timer ends the system will check
the voltages for 10 seconds and close contact if
voltage is detected higher than 12.8V.
Over-Voltage Protection: When a voltage
above 15.5V is detected the system will send open
contact signal if the voltage is below 15.8V. The
module then stops sending outputs until voltage
recovers below this voltage upper limit.
When voltage is detected above 15.8V the system
will still understand voltages up to 17.4V but will
not send any outputs. Diagnostic LED will light
continuously RED-RED-ORANGE sequence in
Over-Voltage when it is higher than 15.8V.
EU FORD TRANSIT 2016.75
Sleep Mode: The system will be active when it
sees ignition position 2 signal from position zero
or key out. When ignition position 2 is deactivated,
the key-off operation timer starts where it will
monitor voltages and continue normal operation
for a timed period set, depending on which
MODES from 1-10 are set. The module will go to
Sleep mode after 10 minutes from the timer
duration period or low voltage cut off point. To
wake up the module, the following conditions
need to occur, either: Ignition state change back
to position 2, Battery Voltage increase or
Immediate Relay Contact Close.
Cold Crank Aid and Third Party Battery
Starter Motor Protect: The system will keep the
relay contacts open after ignition position 2 is
detected until it receives the engine run signal
unless crank does not initiate within a 30 second
period. When engine run signal is received within
the first 30 seconds, the system will close the
relay contacts immediately if converter battery is
above the low voltage threshold set point. If the
third party battery is below the threshold voltage
set point, the system will activate SRC inhibit after
engine run and close the contacts 5 seconds later.
If the system detects a second ignition position 2
cycle without engine run within the first 30
seconds, it will immediately close the contacts
for 30 seconds. This is to provide supplemental
crank energy from the third party battery whilst
not always exposing the third party battery to the
starter motor in-rush current. Also the feature is
designed to avoid third party systems competing
for energy with the starter motor and so maximize
energy for crank on the first attempt. For
continuous key cycles, the relay will remain open
for each 60 seconds period. Function will reset
after 60 seconds and can be used again.
Diagnostics
The system will provide diagnostic messages via
an LED indicator on the modules enclosure.
Certain conditions will be transmitted to the
Status Indicator pins to show the normal
operation state or fault during operation. This will
help identify a failure mode coded by a mark
space ratio output, see the System Diagnostic -
Operation table.
The system will expect 12V on the 5 MODE pins
with various combinations. When a change
happens in the MODE bridge pins, the system will
detect the change and give necessary response
via an LED. The system will check the mode pins
every ignition cycle or when a hardwire voltage
reset is detected. Checking which mode can
therefore be done at every ignition cycle. The
system transmits an LED color message when a
bridging change is detected on the MODE pins,
see System diagnostic – Mode Setup.
Date of Publication: 03/2018
127