Nilfisk-Advance CS7000 Service Manual page 365

Service Manual – CS7000
DTC Error Source
5 Motor
Temperature
High
6 Steering
Controller
Temperature
High
7 Steering Wheel
Rotation Sensor
Circuits
8 CAN Bus
communication
lost
9 Controller
Hardware Fault
10 Internal 15V
supply voltage
is low
11 Internal 5V
supply voltage is
low or high
12 Torque Feedback
Device –
Excessive
Current
Description
The Motor Temperature is above 180
°C (356 °F)
The Steering Controller Temperature
is above 125 °C (257 °F)
One or more of the four digital
"encoder" signals is missing or is not
occurring in the correct sequence
with its paired partner.
The steering controller is not
receiving CAN Bus messages.
The internal current sensor is out of
calibration
The internal 15V supply voltage on
the board is too low
The internal 5V supply voltage on
the board is either too low or too
high.
Excessive current flow through the
torque feedback device circuit.
Check
Restrictions to steering actuator
movement.
Actuator - temperature sensor
accuracy
Restrictions to steering actuator
movement.
Actuator - temperature sensor
accuracy
Sensor - All 4 encoder signals for
proper high voltage to low voltage
switching as the steering wheel is
turned slowly.
Open wiring, intermittent connections.
Shorted wiring - to one another or to
ground.
5v power supply from steering
controller to both encoder pairs
B- supply for both encoders through the
steering controller
Can Bus Wiring
Controller - termination resistor
Note: The steering controller does
not require any CAN bus messages to
operate the steering system.
Controller Electrical Connections
Controller
Controller Electrical Connections
Controller
Controller Electrical Connections
Controller
Steering Wheel Rotation Sensor,
Torque Feedback Device - Shorted
winding.
Short to B+ on TFD control circuit
Steering System 365