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akytec GmbH - Vahrenwalder Str. 269 A - 30179 Hannover - Germany Tel.: +49 (0) 511 16 59 672–0 - www.akytec.de
7 Maintenance
7.1 General Instructions
During the maintenance work on the Device, the safety requirements must be considered.
Maintenance of the Device is carried out at least once every 6 months and includes the following
procedures:
– checking the Device mounting;
– checking the screw connections;
– removal of dust and dirt from the device terminal block.
7.2 Battery replacement
A replaceable CR2032 type battery is used to power the real-time clock.
Replace the battery if at least one of the following events occurs:
– LED Fault blinks (it lights for 200 ms with a 3 second interval).
– The last battery change was 6 years ago.
To replace the battery:
1. Power off the module and all connected devices.
2. Remove the module from the DIN rail.
3. Raise cover 1.
4. Remove two screws 3.
5. Remove the terminal block 2 as shown in
.
Fig. 7.1 Remove terminal block
6. Alternately remove the hooks from the holes on one side and on the other side and remove the
top cover.
