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Maintenance
11.1
Changing batteries
!
!
11-2
PSI 6XXX.350 L1
NOTE
Data buffering is assured for about 30 hours, without internal or external 24 VDC supply
voltage and after removing the battery.
A 3.6 V Lithium battery is installed in the PSI 6XXX.350 L1 to provide data backup power.
This battery supplies the RAM memory and the internal clock in the power down state.
Battery life is approx. 2 years.
If the battery voltage drops so far, that data buffering is no longer assured, the welding
timer will sense this state. The reaction to this event depends on the Fault Allocation in the
menu Basic Setup.
-
If a low battery is defined as a fault, the control prevents the next start and the
Ready message turns off. The [Sequence] can resume after changing the battery
and resetting the fault.
-
If a low battery is defined as warning, the control will issue the appropriate mes-
sage, but [Sequence] will not be disabled.
To change the battery, first remove the cover to the battery compartment with CCW mo-
tion and remove the old battery. Then insert the new battery, while observing the correct
polarity (see illustration on front cover).
NOTE
To prevent loss of data, a bi-annual battery change is recommended as part of preventive
maintenance procedures.
CAUTION!
To prevent environmental harm, observe the currently valid disposal regulations for bat-
teries in effect.
CAUTION!
Danger of explosion: Never expose the battery to temperatures above 85 °C. Do not at-
tempt to charge, solder or incinerate the battery. Do not short circuit or disassemble the
battery.
1070 080 067-101 (2001.03) GB
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