Stiga AUTOCLIP 140 4WD [58/708] Robot safety devices

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User’s manual

• Only quali ed persons, having the necessary technical expertise and skill, should attempt to

work on or repair this robot. Failure to observe these requirements could result in serious

injury.

• The Manufacturer shall not be held liable if non-original spare parts are used.

• Replace worn parts with original spare parts to guarantee the functionality and safety level.

• Do not use the robot on too wet grass or when it is raining.

• To prevent irreversible damage to the electric and electronic components, do not immerse the

robot, partially or completely, in water because it is not watertight.

• Never use and recharge the robot in explosive and/or  ammable environments.

ROBOT SAFETY DEVICES

1. Lift sensor

In the event that the robot is lifted from the ground, the blade will stop rotating in less than two

seconds.

2. Bumpers

The bumper sensor is activated when the mower strikes a solid object, which will stop the mo-

vement in that direction and reverse itself away from the obstacle.

3. Inclinometer

If the robot works on a slope which is steeper than the maximum limit, or tips over, the robot will

stop the movement in that direction and reverse to avoid the slope.

4. Emergency stop switch

Located on the top outer surface of the robot, red in colour. Pressing this button at any time

during operation will stop immediately all mower movements and stop the rotation of the blades

within two seconds (< 2 seconds).

5. Over-current protection

Each of the motors (blade and wheels) are monitored continuously during operation for any

situation that may cause these motors to overheat. If this occurs in the wheel motor, the robot

will attempt to move in the opposite direction. If the over-current persists, the robot will stop

and signal an error. If the cutting motor overheats, then there are two types of intervention. If

the parameters fall within the  rst range, the robot will carry out the manoeuvre to unblock the

cutting blade. If the over-current is below the protection range, the robot will stop and signal a

motor error.