WEISS HP140, Operating Instructions Manual

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37
WAS.handling Electro Documentation
5 Service und Maintenance
5.1 Battery Replacement
The battery of the controller has to be replaced every 4 years to prevent data loss. The control computer
monitors the battery voltage and gives a warning (digital output / field bus) if the voltage drops.
The replacement of the battery may take place when the control computer is switched of or when the 24 V
supply voltage is on. In some countries changing batteries is not permitted if the operating voltage is on. The
data in RAM (stored positions, movement sequences, zero position...) are lost when the battery is removed
without supply voltage! Save the data in advance (Windows Program -> Store parameters).
Procedure for battery replacement:
1. Drain electrostatic charge at the top-hat rail or the ground connection (do not reach into the power supply!).
2. Remove the cover for the Lithium battery with a screwdriver.
3. Pull on the pullout strip to remove the battery (do not grip the battery with a pair of pliers or pincers ->
Short).
The battery may only be touched by hand at the front and backside.
correct: wrong:
4. Insert new battery with correct polarity. Lift the pullout strip and push the battery with the "+"-side towards
the left into the battery compartment. To make it possible to pull the battery out again, the pullout strip must
be on the right side of the battery.
Pullout Strip
Lithium-Batterie