
VANNER
Incorporated
90 Series Owner’s Manual
90-Series Converter Isolator CAN System OWNER’S MANUAL
If d ring normal operations the nit sho ld have an o tp t voltage dip, below 20-Volts, again the nit will
limit the c rrent below the 60-Amp Defa lt. If the nit’s o tp t voltage rises above 30-Volts then the nit
will power off for 10 seconds and perform a restart proced re incl ding the soft start seq ence.
F rthermore, if the nit experiences an over temperat re condition, it will also enter into a c rrent limit (a
10% red ction in the o tp t c rrent capacity) to red ce internal temperat res. If this condition persists, the
nit will again red ce c rrent o tp t, ntil the nit gets o t of the internally monitored thermal danger
zone. If the temperat re contin es to rise, the nit will again power off for 10 seconds and attempt a
restart. If the temperat re remains high, then the nit will NOT operate ntil the temperat re is within the
rated operating temperat res.
Converter-Isolator f nctionality
All f nctionality described in this section req ires that the Monitor Ignition Inp t (Terminal B) be
connected to +24v in order to be active. Please see the above fig re for placement of the c rrent
and temperat re sensors.
A. Switched Sensor Supply Output
This o tp t is sed to provide +5v for Vanner VSS Series c rrent sensors and temperat re sensor.
The +5v o tp t is switched for low power sh tdown and sleep mode operation.
B. Ignition (Enable) Input
This inp t powers the Converter-Isolator. When this pin is taken to +24V the Converter-Isolator
becomes active.
C. CAN Shield
This connection is sed to make common the shield on the CAN cable. This is req ired for noise
considerations in vehicle electrical systems.
D. CAN Low
This is the connection for the vehicle’s p blic CAN b s. The Smart Monitor will comm nicate
fa lts to the vehicle’s electrical system controller via the CAN b s.
E. CAN High
This is the connection for the vehicle’s p blic CAN b s. The Smart Monitor will comm nicate
fa lts to the vehicle’s electrical system controller via the CAN b s.
F. Not Connected
This pin is not c rrently sed.
G. Not Connected
This pin is not c rrently sed.
H. Sensor Ground
Connect gro nd for c rrent sensors and Smart Sensors here.
J. Single Current Sensor (+24V) Signal Input
The monitor can record incoming and o tgoing battery c rrent on the pper (+24V) battery. The
o tp t from the c rrent sensor monitoring the +24v battery line sho ld be connected to this inp t.
**Note that the arrow on the current sensor should pointed toward the battery i it is
connected to the positive terminal o the battery.**
K. Not Connected
This pin is not c rrently sed.
L. Temperature Sensor
The monitor can record the temperate of the batteries. The o tp t from the Vanner temperat re
sensor sho ld be connected to this inp t.
M. +24V Battery Input Sense (Starting Batteries)
If this pin is connected directly to the +24V battery positive by a separate line, it will improve the
acc racy of the Converter–Isolator inp t voltage when load c rrent is drawn. See “Remote Sense”
below for more information.