
Installation and Startup of AL 300
20
Version 3-1 05. Dezember 2019
4.7
Replacing the battery
The Operator Terminal contains a backup battery (CR 2450-N, 3V lithium). A Battery Low alarm (Error No. 10)
will be signalled when the battery needs replacing.
Warning - hazardous electrical voltage!
Danger of electric shock!
The safety instructions and work safety instructions in chapter 1 must be
observed when replacing the battery, the safety instructions in chapter 1 of the work safety instruc
tions are to be observed. Power supply to
all
connectors must be switched off before connecting or
disconnecting them. Circuit boards may only be replaced when power supply is disconnected. Mark
connectors as necessary BEFORE disconnecting them. Grip circuit boards only at the edges.
ESD (electrostatic discharge) regulations must be observed and complied with, see section 1.2.
Battery replacement procedure:
AL 300 connected to CAN bus: The AL 300 Operator Terminal must be removed from the system
for battery replacement. The removal of the CAN bus will trigger an error message at the higher
level controller (System Centre / Store Computer / other AL300 Operator Terminals)! Make sure
that service mode is activated or the Service Center is appropriately notified in advance.
1.
Remove the Al 300 (with disconnected connectors) from the control panel (see chapter 4.1 and 4.2)
2.
Place the AL 300 face down on a clean, dry and level surface and undo the six screws fastening
the metal cage to the front panel.
3.
Carefully turn the AL 300 over face up, lift the front panel and disconnect the green two-pin connector
(see arrow in the picture) from the small switch wiring board. Leave the other connectors in place!
Содержание AL 300 S
Страница 21: ...Function of AL 300 16 Version 3 1 05 Dezember 2019 Notice ...
Страница 31: ...Pin and Terminal Assignments of AL 300 26 Version 3 1 05 Dezember 2019 Notice ...
Страница 51: ...Decommissioning and disposal 46 Version 3 1 05 Dezember 2019 Notice ...
Страница 59: ...Specifications of AL 300 54 Version 3 1 05 Dezember 2019 Notice ...
Страница 61: ...Order numbers and accessories of AL 300 56 Version 3 1 05 Dezember 2019 Notice ...