Nilfisk-Advance CS7000 Fuel Cell EcoFlex, Service Manual

Page: 367 / 440

Steering System 367 Service Manual – CS7000
DTC Error Source Description Check
23 Motor cable not
connected (U,V
or W wire open)
One or more of the motor cables
between the steering actuator and
the steering controller are not
connected
Wiring - U, V and W cables and
connections.
24 Position
calibration error
This error occurs when the steering
controller calculated actuator motor
position indicates the mechanism
is beyond a steering travel limit
switch position but the switch has
not indicated that the end has been
reached. (The steering controller
believes that the physical position
of the steered wheel is beyond the
“soft limit” that should have been
indicated by the steering travel
limit switch closing.) This error also
occurs when a steering travel limit
switch closes indicating that the
limit of travel has been reached but
the controller calculated position
indicates that the mechanism should
not be near the limit of travel. .
Excessive backlash in steering gears
Controller Configuration
Steering Limit Switches
Steering Limit Switch wiring
25 Position sensor This error occurs when the steering
controller calculated actuator motor
position indicates the mechanism
is beyond a steering travel limit
switch position but the switch has
not indicated that the end has been
reached. (The steering controller
believes that the physical position
of the steered wheel is beyond the
“soft limit” that should have been
indicated by the steering travel
limit switch closing.) This error also
occurs when a steering travel limit
switch closes indicating that the
limit of travel has been reached but
the controller calculated position
indicates that the mechanism should
not be near the limit of travel. .
Excessive backlash in steering gears
Controller Configuration
Steering Limit Switches
Steering Limit Switch wiring
26 Speed regulator
supervision
Difference between set value and
actual value for speed regulator are
above limit.
Obstructions to steering actuator gear
rotation.
Excessive gear backlash
Loose connection in steering actuator
encoder wiring.
Steering Actuator
27 Induction speed
estimation
supervision
The estimated speed is above limit