Zepro Z 1500 Technical Manual page 12

Control cards
2.1.5 Sensor input
Sensors are used to provide added functionality when certain conditions are met, or limit certain functionality
for safety reasons. The ZePRO1 control card has input pins for up to 6 digital sensors, Di1 through Di6, as
well as 2 analog sensors, Ai1 and Ai2. The card can accomodate the sensors shown in the table. Different
variants of the Z 1500/2000 use different types and number of sensors, see the functional descriptions and
schematics chapter for more information.
Type
Digital angle sensor
(ball type)
Digital angle sensor
(liquid type)
Analog angle sensor
(Inclinometer)
Pressure sensor
12
Picture
An angle sensor that uses an articulating ball to
output an On/Off signal for certain angle ranges.
Usually mounted on the platform and used to con-
trol the two hand safety requirement.
A sensor that uses a fluid to measure the angle and
outputs an On/Off signal for certain angle values.
More accurate than the ball type sensor.
Mounted on the platform on tail lifts equipped
with digital auto tilt on which it is used to stop the
auto tilt up motion of the platform when it reaches
horisontal level.
Advanced analog angle sensor that outputs 0-4,5 V
depending on angle.
Mounted on the platform on tail lifts equipped with
analog auto tilt with angle setting function on which
it is used to stop the auto tilt up motion of the plat-
form when it reaches desired angle. It also controls
the two hand safety requirement.
Outputs an On/Off signal if the pressure exceeds
(rising pressure sensor) or falls below (falling pres-
sure sensor) a predetermined value.
It is most often used for the open platform alarm, in
which case it is mounted on the positive hydraulic
connection to the right tilt cylinder. It can also be
used for the auto tilt function in which case it is
mounted on the positive hydraulic connection to the
right lift cylinder.
Explanation
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