Insertion / Replacement Of The Lithium Battery - ABB AC500 Introduction Manual

Important: Horizontal mounting is highly recommended. Vertical mounting is possible,
however, derating consideration should be made to avoid problems with poor air circulation and the
potential for excessive temperatures (see also the AC500 system data, operating and ambient
conditions, for reduction of ambient temperature).
Note: By vertical mounting, always place an end-stop terminal block (e.g. type BADL, P/N:
1SNA399903R0200) at the bottom and on the top of the modules to properly secure the modules.
By high vibration applications and horizontal mounting, we also recommend to place end-stop
terminals at the right and left side of the device to properly secure the modules, e.g. type BADL,
P/N: 1SNA399903R0200.

Insertion / replacement of the Lithium battery

The CPU is shipped without a battery. Please order the TA521 lithium battery separately. The battery is
used to retain data stored in the user's RAM and in the Real Time Clock. Although the CPU can be used
without any battery, it is recommended to install it to avoid process data loss.
The CPU monitors the battery status. A low battery error is output before the battery condition becomes
critical (about 2 weeks before). After the error message appears, the battery should be replaced as soon
as possible.
ATTENTION
The following procedures describe the insertion / replacement of the Lithium battery.
WARNING!
Use of
incorrect
battery may
cause fire or
explosion.
Figure: Insertion / replacement of the Lithium battery
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G1
Introduction to AC500
The TA521 Lithium Battery is the only one, which can be used with AC500 CPUs.
WARNING!
Use of
incorrect
battery may
cause fire or
explosion.
1a 1b
3
4+5
1-39
2
WARNING!
Use of
incorrect
battery may
cause fire or
explosion.
6
AC500 / Issued: 07.2006