Z 1500/2000 Ma With Digital Auto Tilt - Zepro Z 1500 Technical Manual

Functional descriptions and schematics
3.2

Z 1500/2000 MA with digital auto tilt

3.2.1 Description
The Z 1500/2000 MA with digital auto tilt is a variant with double acting tilt cylinders and single acting lift
cylinders. It is equipped with a quick opening valve that increases the opening speed of the platform. It is also
equipped with digital auto tilt functionality with adjustable auto tilt angle that is adjusted by physically changing
the angle on the IFM sensor.
Sensors used
Angle sensor located on the platform used for the safety requirement for two hand operation when opening
and closing against the boxy body. The sensor is inactive when the platform angle is within 45 degrees from
vertical and within this range the two hand control is required. If the platform is closer to horizontal, the sensor
is active and the requirement is removed. This sensor is connected to Di3 on ZePRO1 and to S3 on TLC-B1.
Pressure sensor located on the positive hydraulic feed to the tilt cylinder used to activate the open platform alarm.
The sensor is active when the pressure drops below 60 bar which enables the Pa+ and Pa- pins on cabin switch
section of the control card. This sensor is connected to Di4 on the ZePRO1 card and to S4 on the TLC-B1 card.
Liquid-type angle sensor located on the platform used to control the auto tilt functionality. The sensor is acti-
vated when the platform is tilted down from horisontal and remains active until the platform is tilted back to
horizontal. This sensor is connected to Di2 on ZePRO1 and to S2 on TLC-B1.
Pressure sensor located on the positive hydraulic feed to the lift cylinder. The sensor is used to sense when the
platform reaches the ground level at which point the auto tilt down function is activated. The sensor is activated
when the pressure in the hydraulic line drops below 2,5 bar. This sensor is connected to Di5 on ZePRO1 and
to S5 on TLC-B1
For proper auto tilt function, the Di1 is bridgded to sensor power on ZePRO1. On TLC-B1, S3 is bridged to S3+.
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