Bender ATICS-2-63A-DIO, Manual

Page: 14 / 104

System description
14 ATICS-DIO_D00080_01_M_XXEN/04.2015
3.4 ATICS® tasks
The ATICS® transfer switching device has the following capabilities:

Two-pole changeover of the power supply

Voltage monitoring for the preferred supply (Line 1)

Voltage monitoring for the second supply (Line 2)

Voltage monitoring at the transfer switching device output (Line 3)

Monitoring of the changeover switch for correct switch position

Internal functional testing, including checking the switching times

Communication to remote MK… alarm indicator and test combinations, and to TM… alarm
indicator and operator panels via BMS bus

Option for adjusting the time delay for the changeover process according to DIN VDE 0100-710
(VDE 0100 Part 710)

Possible field of application on systems according to DIN VDE 0100-710 (VDE 0100 Part 710)
with a changeover period ≤ 15 s or even ≤ 0.5 s
3.5 The ATICS® functions
3.5.1 The transfer switching device
If the preferred supply fails, the ATICS® ensures the power supply is changed over safely.
The switch contacts are offset on a rotating shaft. This design prevents simultaneous switching of
Line 1 and Line 2. The switch has three positions:
1 Line 1 switched on
0 Both lines switched off
2 Line 2 switched on
Either Line 1 or Line 2 can be set as the preferred line (setting described in "Settings menu 1: Change-
over" on page 67 or "Settings menu 5: Digital Input" on page 73).
1. In the normal condition (fault-free condition) the preferred supply is connected. The ATICS®
will switch to the redundant line if:
– the preferred line fails
– the "TEST" button is pressed
– a digital input is configured to "TEST" and this input is enabled
– the setting "Preferred Line" is reconfigured to the other line
2. The ATICS® switches from the redundant line back to the preferred line if
– the voltage on the preferred line is restored and
- the return transfer delay time t(2->1) has expired and no switching back interlocking
function is enabled
- or immediately after pressing the "RESET" button or when the redundant line fails
(even when the switching-back interlocking function is enabled)
– the setting "Preferred Line" is reconfigured to the other line
– the digital input is configured to "TEST" and this input is reset
– a transfer switching device test is enabled and the test time has expired