ATICS-2-ISO_D00046_04_M_XXEN / 03.2021 25
ATICS-2-63A-ISO
ATICS® also continuously monitors:
• Power supplies 1 and 2, which supply the electronics from the systems concerned
• Internal microcontrollers and memory modules
• Important connecting wires, such as:
– Measuring current transformer connection
– Temperature sensor connection
– Power supply and PE connection
• For alarm and test combinations and alarm indicator and operator panels, device failure mon-
itoring can also be programmed via the BMS bus (required for functional safety, see chapter
„Setting parameters of indicator devices“ on p. 45).
I
Warning for systems with generator: Complete power failure may occur.
If the preferred line fails, the ATICS® will start the generator connected to the redundant line. If the
generator does not start, the line downstream of the transfer switching and monitoring device will
be dead. When the generator is switched off, the ATICS® cannot check the redundant line. Test the
generator at regular intervals and the transfer switching and monitoring device to make sure they
are working properly (see checklist, included in the scope of delivery).
3.5.4 Power supply
The coils of the changeover switch are each supplied from the line which is not currently switched on.
This ensures that it is possible to switch to the redundant line if the preferred line fails, for example.
The power supply of the electronic system is redundant from lines 1 and 2. This ensures constant sup-
ply to the electronic system even when one line fails.
If both lines fail, the changeover switch remains in the last switch position. Switch the ATICS® to posi-
tion "0" using an Allen key. When power is restored, the ATICS® switches on the supply again with the
set delay time t(start). If several ATICS® are installed in one system, they can be switched to the pre-
ferred line one-by-one starting from switch position "0" on voltage recovery. This prevents the peak
loads that would occur if the lines of several transfer switching devices were switched on simultaneous-
ly.
Optionally, the " -ES " version of ATICS® can be used with the external ATICS-ES energy storage device
to supply the two coils as well as the electronics. This means that the switching to position "0" takes
place automatically in the event of a failure of both supply lines.
3.5.5 Manual mode
In manual mode, changeover can be achieved using an Allen key. The switching device can be can be
locked in switch position "0" with a padlock.
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