Height Rider/SP Series
Operating & Safety Instructions
English/USA – 01/18
Original instructions
21
4
Operation
4.1
CONTROL CIRCUIT COMPONENTS
4.1.1
GROUND CONTROLS
PROGRAMMABLE LOGIC CONTROLLER (PLC): -
Situated behind the Ground Controls Station is the
PLC. Its purpose is to receive signals from
all
areas of the control, to process the instructions and
machine status, and to safely operate the relevant machine functions.
TILT SENSOR
: - Installed on the superstructure behind the ground controls canopy, the tilt sensor
monitors the inclination of the machine chassis. When the platform is in use, (i.e. Booms are raised), if
the inclination exceeds the pre-set limit, it will disable all drive functions, sound the alarm and display a
warning symbol on the screen. In order to recover the machine, boom operation is unaffected, allowing
the operator to restore drive by lowering the booms into the stowed position. It is then possible to drive
back onto level ground, fully restoring machine operation.
MULTI-TONE SOUNDER AND BEACON
The Niftylift will warn personnel that the machine is about to move when the green power button or
footswitch is pressed. The machine’s default setting is to sound a beeper at the base control location
and flash a beacon mounted on the top of the engine canopy. However, the machine can be
configured to select either the sounder or the beacon if site conditions require the machine to behave
differently. (e.g. Beacon only, when used at night in a residential area). It is mandatory that one alert
device is functioning, and it is not possible to turn off or permitted to disable both the beacon and
sounder.
If a safety-critical situation occurs, the sounder will emit a “ricochet” sound to alert the user and
nearby personnel. This warning occurs even if the motion sounder setting has been disabled.
Cage Weigh:
- If the electronic load cell detects an overload condition, the machine will sound
continuously in conjunction with the cage overload warning light and warning symbol on the screen
display.
HORN
: - Located on the side of the ground control box is a horn, which is used as a manual alert, by
pushing the "Horn" button on the Platform Control Panel.
BOOM SENSORS: -
Mounted inside the booms and operated by the raising of either boom, these
sensors control both the operation of the Tilt Sensor, and the speed control function. With the booms in
the stowed position, the Tilt Sensor is by-passed, allowing the machine to negotiate slopes in excess
of the permissible elevated working angle, without isolating the drive function. At the same time, High
Speed drive (Depicted by a Hare Icon) is possible. When the booms are raised the Tilt Sensor is
activated and only Slow Speed drive is permitted. These control functions are of primary importance to
safety of the machine and operator;
under no circumstances should this control function be
isolated or by-passed.
Содержание HR 12
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