PROALL P Series, Руководство по обслуживанию, Страница: 13 / 118

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5. TESTS AND DIAGNOSTICS
Use these tests as a guide to trouble-shoot and replace components if need be. The Commander display provides a lot
of information that can be used to diagnose potential issues. Use this information first to narrow down potential issues
before you replace or adjust components.
5.1 CANBUS SPEED SENSORS
IMPORTANT!
Speed sensor operation on the mixer is crucial to ensuring metering functions are reaching their speed set-
points and in the calculation of total volume output. There are ways to run the mixer in a “LIMP” mode when a
sensor has failed, but this should only be done in emergency circumstances.
Sensor components:

The speed sensor is made up of two main components. The
first is the sensor and the second the magnet .

The magnet is threaded into the end of rotary shaft and the
sensor measures via magnetic field the rotation of the shaft
and converts this to a pulse and RPM output.
Electrical diagnostics:

All CANBUS speed sensors can be checked for operation on
the Commander display.

Should an issue arise that points to a speed sensor not
working the first step is to check Electrical Diagnostics to
see what is active (green) and what isn’t (red) .

All speed sensors are designated by their function and the
abbreviation “ENC”, which is short for encoder.

If a function shows up as red it is either not connecting to
the CANBUS network or it isn’t physically installed (various
optional equipment).

If the sensor diagnostic is red check wiring connections to
ensure they are not loose or broken. Also, inspect
connections for corrosion, pins broken or pushed back.
A B
C
D
C
D
A
B