Maintenance
Product Manual IRB 640 15
2.10 Changing the battery in the measuring system
The battery to be replaced is located under the cover, in the front of the frame.
(See Figure 9).
The robot is delivered with a rechargeable Nickel-Cadmium (Ni-Cd) battery with arti-
cle number 4944 026-4.
The battery must never be thrown away, it must always be handled as hazardous waste.
• Set the robot to the MOTORS OFF operating mode. (This means that it will not have
to be coarse-calibrated after the change.)
• Loosen the battery terminals from the serial measuring board and cut the clasps that
keep the battery unit in place.
• Install a new battery with two clasps and connect the terminals to the serial measuring
board.
• The Ni-Cd battery takes 36 hours to recharge; the mains supply must be switched on
during this time and there must not be any interruptions in the power supply.
Figure 9 The battery is located in the front of the frame.
Alternative battery
As an alternative to the Ni-Cd battery a lithium battery of primary type can be installed.
The lithium battery needs no charging and for this reason there is a blocking diode
which prevents charging from the serial measurement board.
The benefit with a lithium battery is the extended service life, which can be up to 5
years, compared with a Ni-Cd battery’s max service life of 3 years.
Two types of lithium battery are available:
- a 3-cell battery, art.no. 3HAB 9999-1
- a 6-cell battery, art.no. 3HAB 9999-2
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