Ammann ARR 1575 - Machine Halt and Control Function Problems

289ARR1575
WORKSHOP MANUAL
18.1.3 Near and remote machine halt
The near and remote machine halt function is an electronic safety feature designed to prevent the loss of visual contact between the
operator and the machine and excessive proximity of the operator to the machine.
A machine equipped with infrared remote control contains infrared sensors determining the safe distance of the operator from the
working machine. This creates aprotected zone and asafe zone.
The protected zone is within 2 m from the infrared sensors.
The safe zone is an area marked in grey located at adistance of 2 ÷ 20 m when using the infrared remote control; see Fig. 555151.
When using the infrared remote control, the operator is allowed to move only within the safety zone.
The safe zone is an area marked in grey located at adistance of 2 ÷ 4.5 m when using the infrared remote control and cable; see Fig.
555152.
When using the infrared remote control and cable, the operator is allowed to move only within the safety zone.
Conditions for the near and remote machine halt function
Infrared remote control and cable Infrared remote control
Near halt
approx. 2 m approx. 2 m
Remote halt approx. 4.5 m approx. 20 m
If the operator leaves the safe zone, the machine halts. The engine keeps running, but all other functions are disabled. In order to reac-
tivate the machine, the operator must be located in the safe zone according to specic conditions, with the cable connected (2–4.5 m)
and when controlling via the infrared remote control (2–20 m).
The infrared sensors do not react to people approaching the machine, only to the infrared remote control.
During the operation of the machine, do not enter the protected zone of two metres.
The border of the protected 2 m zone might be deformed by the deection of rays of the infrared remote control or
insucient direct visual contact.
Do not use the infrared remote control in the protected 2 m zone or when there is insucient visual contact between
the machine and the operator or the infrared remote control, unless stated otherwise.
Operate the machine exclusively from the area in grey, i.e. from the safe zone. Outside the safe zone, the control switch-
es of control elements do not correspond to directions of machine movements.