B&R Automation PC 620 - Power Management for the APC620 Embedded System Unit; Supply Voltage for the 5 PC600.SE00-00, 5 PC600.SE00-01 and 5 PC600.SE00-02

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Technical data • Entire device
Automation PC 620 with 945GME N270 CPU board User's Manual V 1.10
2.11 Power management for the APC620 embedded system unit
2.11.1 Supply voltage for the 5PC600.SE00-00, 5PC600.SE00-01 and 5PC600.SE00-02
The following block diagram presents the simplified structure of the APC620 embedded supply
voltage for system units 5PC600.SE00-00, 5PC600.SE00-01 and 5PC600.SE00-02.
Explanation:
The supply voltage is converted to 15 V with a DC/DC converter. These electrically isolated 15
V feed four further DC/DC converters, which generate the remaining voltages.
After the system is turned on (e.g. using the power button), the voltages 3V3 and 5 V are placed
on the bus.
The optional APC620 add-on UPS and battery unit is supplied with 15 V and provides an
uninterrupted power supply from the 15 V bus during power failures.
Figure 32: Supply voltage for the 5PC600.SE00-00, 5PC600.SE00-01 and 5PC600.SE00-02
24V
15V
Supply voltage
+24 VDC
Buffering capacitors
(for min. 10 ms)
electrically
isolated
3V3 Standby
3V3
3V3
5V
15V
5V
15V
Power On
5V Standby
UPS battery
Add-on UPS
module (optional)