User Manual

Technical Manual for Master Terminals of the Series IF 152x
Page 35
Maintenance
Preventive maintenance of master terminals is usually not required.
How to Replace the Accumulator Block
Replace the accumulator block of the internal emergency power supply board after:
• 5 years if the master terminal is operated in an environment with an ambient temperature of
approx. 20° C.
How to Replace the Lithium Battery
Replace the lithium battery (38-0002) on the MPU board after 8 years at the latest.
# Caution: Incorrect handling during the exchange of the lithium battery may cause an explosion!
Avoid causing a short circuit of the poles.
Procedure:
• Switch the master terminal to online mode and collect all the unprocessed data.
• Switch off the supply voltage and the emergency power supply.
• Open the front part of the housing.
• Remove the MPU board.
• Remove short circuit jumper clip (1).
• Unsolder the lithium battery and replace it by one of the same type. Mind the polarity.
• Plug in the short circuit jumper clip and install the MPU board.
• Re-determine the checksum of the application software with the OC menu „$ checkappl -x
“.
• Initialize the master terminal (cold boot 2).
• Set the switch to the operating position (3).
• Initialize the master terminal (load data).
Disposal of Accumulators, Lithium Batteries, Components and
Assembly Units
# Attention: Old, defective accumulators and lithium batteries as well as defective, non-repairable
assembly units must be disposed of properly.
• Only discharged accumulators and lithium batteries should be thrown into waste disposal
containers. To be on the safe side, use electrician's tape to cover the poles of the
accumulators/batteries or wrap each accumulator/battery into a plastic bag before throwing it away.
• Send old assembly units back to Interflex marked "old components/ assembly units to be disposed
of".