Section 6
Page 33
Service Training
6.3.2.3 CONNECTOR TERMINAL FUNCTIONS 3X1
TERMINAL
COLOUR FUNCTION ASSOCIATED WITH
1 RD(301) Control card supply positive +24V after key switch
2 BU(302) Potentiometer negative supply Battery negative 0V for set value
3 BU(303) Set value signal track 1 Variable signal between 0V- 8.2V
4 BU(304) Set value signal track 2 Variable signal between 0V- 8.2V
5 WH(305) Speed sensor track A Variable signal 0V-6V
6 WH(306) CAN 2 high (steering) Connected to the bus CAN 2 high (steering) LES
7 BN(307) CAN 2 low (steering) Connected to the bus CAN 2 low (steering) LES
8 BU(308) Traction signal go Battery negative 0V if LES OK
9 BU(309) Contactor control 3K1 Negative for steering motor contactor
10 RD(310) Positive supply for 3K1 positive +24V after internal relay for 3K1
11 BK(311) Negative supply of the card Connected to the battery negative 0V
12 BU(312) Potentiometer negative supply Battery negative 0V for current value
13 BU(313) Current signal value track 1 Variable signal between 0V- 8.2V
14 WH(314) Speed sensor track B Variable signal 0V-6V
16 WH(316) CAN 1 high (steering) Connected to the bus CAN 1 high (steering) LES
17 BU(317) Steering angle signal Signal for traction speed reduction
18 RD(318) Positive supply for internal relay Positive +24V towards 3K1 via the internal relay A
19 RD(319) Positive input for internal relay
Positive +24V towards the LAC via the internal relay B
20 BU(320) Stabilised power supply +10V for set point potentiometer
21 BU(321) Stabilised power supply +10V for wheel potentiometer
22 BU(322) Current signal value track 2 Variable signal between 0V- 8.2V
27 BN(327) CAN 1 low (steering) Connected to the bus CAN 1 low (steering) LES
29 BU(329) Positive output of internal relay
Positive +24V towards the LAC via the internal relay B
6.3.2.2 MAIN CIRCUIT CONNECTIONS
1 :+ Positive connection for the power unit via the line contactor 3K1, the power fuse 3F1 and the
circuit-breaker button.
2 :- Power part negative supply
3 :M1 Connection coming from the motor armature.
4 :M2 Connection coming from the motor armature.
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