chapter 5000
page 30
1,2 - 2,0 t A.C.
SERVICE MANUAL
Electric
036-0410-07
I/O CARD
INPUT / OUTPUT CARD
The card is located on the left side of the truck under the footboard. controls and
converts analogic signals to digital signals and vice versa
Connector J1 (J38*) for input of the brake oil tank LED, button for the
programmed performance, button for the speed reduction.
Connector J2 not used
Connector J3 (J5*) to control the electric horn. The horn is electronic and this is
the electric connection on the card:
J3/1 command signal (B white cable) from Arm Card
via CAN-BUS
J3/2 negative (N black cable)
Connector J4 (J34*) for the pedals: accelerator pedal, brake pedal, parking
brake lever, horn.
Connector J5 (J135*) CAN-BUS (light card) and feeding to 24V
Connector J6 (J136*) CAN-BUS (dashboard) and feeding to 24V
Connector J7 (J1*) for traction motors temperature sensors.
Connector J8 (J98*)(+BV) feeding for Mhyrio logic unit
Connector J10 (J40*) for the mechanic distributor (in this case the voltage on the
micro is 5 volt).
Connector J13 (J139*) CAN-BUS signals and feeding to 48V for Mhyrio logic
unit
NOTE: (Jxxx*) WIRING DIAGRAM CONNECTORS
On the I/O card there is another resistance of pull up for the CAN BUS. It
could be connected in case of disconnection of the dashboard. To perform
this operation it is enough to connect the two free PINS circled in the
picture by means of a brigde.
PINS for connecting the extra resistance for the CAN BUS
J3
J3/1
10
J3/2
J5
J6
J8
J13
J4
J1
J10
J2
J7
HORN ELECTRIC CONNECTION
( horn side)
The horn is electronic and needs a signal to
work. It is continually supplied by the following
cables: A, light blue, positive cable + 48 V
["+" on the horn] and N black cable negative
["-" on the horn]. The command signal on cable
B white cable ["IN" on the horn] is a high signal,
when the horn push button is pressed the signal
goes to the negative and the horn begins to beep.
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