Beckhoff CB3053 Manuel d'utilisateur télécharger pdf (Page 16)

Chapter: Connectors Power Supply

page 16 Beckhoff New Automation Technology CB3053

4.2 Power Supply

The power supply of the hardware module is realized via an 8pin connector (Weidmüller 180537-0000).

The main 24V power lines are assigned to pins 5 and 6. An external Pb-battery can be connected to pins

1 and 2 to provide UPS functionality. Contact your sales person to discuss suitable battery packs.

Pin 3 (UPS_OUT) is a 24V output (max. 2A), which is supported by the UPS (Pb-accu or capacitors) in

the event of a power failure. One possible application would be to use this output to supply a display

device which would then be able to display information about the power failure and the pending system

shutdown.

If a UPS is present you need to have a possibility to shutdown the board in a regular way without

activating the UPS, thereby preventing premature aging of UPS components. That's what pin 7

(PC_ON#) is for. When pulled high (24V) a regular shutdown without UPS activity is triggered. As a part

of this regular shutdown pins 3 (UPS_OUT) and 8 (Power Status) are pulled from 24V to 0V. Any devices

connected to UPS_OUT will thus also be switched off without discharging the UPS.

pinout power connector:

Name Description

1 BATT24V# Pb-accu 24V -

2 BATT24V Pb-accu 24V +

3 UPS_OUT UPS outgoing supply 24V

4 GND ground

5 24V# power supply 24V -

6 24V power supply 24V +

7 PC_ON# power on

8 PWRSTAT power status

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 68 69

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Beckhoff CB3053 Manuel d'utilisateur Page 16