Mitsubishi PBV20N2 Service Manual page 30

© Mitsubishi Forklift Trucks 2013. All © Mitsubishi Forklift Trucks 2013. All
PBV20N2 PBV20N2
4.3.7 4.3.7 Sensors Sensors
An inductive se An inductive sensor is an electro nsor is an electronic proximity se
without touching them. without touching them.
The sensor consists of an induction loop The sensor consists of an
that collapses, thus generating a current that falls asymptotically toward zero from its that collapses, thus generating a current that falls asymptotically toward zero from its
initial level, when the electricity input ceases. The inductance of the initial level, when the electricity input ceases. The inductance of the loop changes
according to the material inside it and, since according to the material inside it and, since metals are much more effective inductors
than other materials, the presence of metal increases the current flowing through the than other materials, the presence of metal increases the current flowing through the
loop. This change can be detected by sensing circuitry, which can signal to some other loop. This change can be detected by sensing circuitry, which can
device whenever metal is device whenever metal is detected.
Figure 15. Sensor locations Figure 15. Sensor locations
1. 1. Tiller sensor Tiller sensor
2. 2. Side guard sensors Side guard sensors
The truck uses the The truck uses the following sensors: following sensors:
Tiller sensor Tiller sensor
• •
Four side guard sensors, two on each side guard Four side guard sensors, two on each side guard
• •
Operator's platform sensors, two on the right-hand side Operator's platform sensors, two on
• •
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nic proximity sensor, which dete nsor, which detects metallic obj
induction loop. Electric current generates a magnetic field . Electric current generates a magnetic field
metals are much more effective inductors
detected.
3. 3. Operator's platform sensors Operator's platform sensors
the right-hand side
Document ID: 615023 Document ID: 615023
Service Manual Service Manual
cts metallic objects ects
loop changes
signal to some other
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