ECKELMANN UA 410 D, Руководство по эксплуатации

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Installation and Startup of UA 410 D
47 Firmware V1.40 - Doku 2.1 06. April 2016
5.9 Maintenance and battery replacement
Only UA 410 D AC
The case controller contains a backup battery of Type CR 2450 N, 3V Lithium. The case controller must be re­
moved from the system to change the battery. During this time, control and monitoring of the refrigeration point
are disabled.
If the controller is connected via the CAN bus to a higher-level controller, it will no longer be on the CAN bus. In
addition to the precautions directly concerning the refrigeration point, consideration must be given to the effects
on higher-level controllers on the CAN bus.
Warning - hazardous electrical voltage!
Danger of electric shock!
When changing the battery, the safety rules and the industrial safety
notes contained in the section 1 must be observed. All connectors may only be connected and dis­
connected when power is off. Circuit boards may only be exchanged when power is off. Always take
hold of circuit boards at the edges.
ESD regulations must be observed; see section 1.5.
Danger of fault alarm! Removal of the case controller from the CAN bus generates fault alarm on
the higher-level controller (e.g. system centre / store computer). Make sure the alarm is cancelled in
due time or the Service Center is advised in advance.
1. Disconnect the case controller and refrigeration point from power.
Acknowledge alarm at the system centre / store computer.
2. Disconnect all the plugs, remove the device from the DIN rail.
Warning - hazardous electrical voltage!
Danger of electric shock!
Some connectors may carry 230 V AC power. Connectors should be
marked before disconnecting.
3. Push the plastic lid’s two left-hand snap lugs inwards and upwards with a broad flat-bladed screwdriver (A)
and lift up the lid with a swinging movement (B).
4. Pull battery up out of its holder (C) and dispose of it in regulation manner.