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Access Modular Controller 2
4.7
Connecting the power supply to the controller
Connect the power supply to the POWER 7-pin pluggable screw connector.
Figure 4.7: Location of the power supply connector
Connect an external power supply (10 VDC - 30 VDC) to the controller at pin 1 (positive) and
pin 3 (0 V) of the pluggable screw connector.
Bosch recommends using the Bosch APS-PSU-60 power supply unit.
This power supply can also be used as an uninterpretable power supply (UPS) when using the
appropriate batteries. It also has relay outputs for monitoring the power good signals. These
can be connect to
–
–
–
If the recommended power supply is not in use, it is useful to have these pins short-circuit.
Notice!
If a battery is used, the power supply unit (PSU) checks the battery status every 5 minutes.
During the self-test, the PSU switches its output from AC regulated power to battery
regulated power. This causes the AMC to be supplied by the battery only.
Make sure that the battery is maintained according to the advice of the manufacturer, in order
i
to reduce the risk of losing the power on the AMC controller during self-test.
The duration of this self-test is of approximately 1 second.
The Power Good AC signal is switched off during the self-test.
If no battery is connected, the PSU does not perform any self-test.
Depending on the security level of your building, it is recommended to replace the battery
more frequently (e.g. every 3 years, in order to keep the system running properly).
Notice!
i
Unstable AC networks can result in various error messages on the host system. If this
happens, the AMC only reports AC power losses of more than 10 minutes of duration. This
time cannot be set.
Bosch Security Systems B.V.
pin 4 and 7 for power good AC
pin 5 and 7 for power good Battery
pin 6 and 7 for power good DC
Installation manual
Installing | en
21
2021-04 | V04 | IM
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