External Dc 24 V Power Supply; External Dc 24 V Voltage Supply For Group Stop; Dc 24 V Power Supply By Agl; Requirements To Be Met In Operation - BONFIGLIOLI Agile Applications Manual

Examples of contact sensors:
 Emergency stop control device for stop in dangerous situations
 Position switch, e.g. for monitoring slide doors, safety grids or moving machine parts
Examples of no-contact sensors:
Light barriers, e.g. for monitoring areas with dangerous movements

 Light curtains

7.3 External DC 24 V power supply

CAUTION
Use a suited SELV/PELV voltage supply, which rated voltage has to be DC 24 V ±10 %.
The largest overvoltage must not exceed DC 32 V in the case of a fault (one fault safety)
. The one fault safety has to be realized with an overvoltage protection of the mains
supply (overvoltage protection OVP with limiting the output voltage to a maximum of
DC 32 V) or an external wiring like a Crowbar. An adequate overvoltage category of the
voltage supply has to be ensured.
During projection and installation of a DC 24 V supply connected to the frequency inverter comply with
the following instruction. This also includes supply of a safety control device the output of which is
connected to a control input (including STOA and STOB) of the frequency inverter.

7.3.1 External DC 24 V voltage supply for group stop

When multiple frequency inverters should be switched off by on DC 24 V voltage supply, the overall
current consumption of the STO inputs must be determined.
Please check the operating instructions for the current consumption.
Typical is 10 mA for each STO input for each device.
Dimension the cable cross sections according to the calculated current in compliance with the maximum
connectable cable cross sections.

7.4 DC 24 V power supply by AGL

You can use terminal X11.1 (DC 24 V supply) and X11.2 (GND) in order to supply a safety control device.
Only use the power supply for the device connected to the frequency inverter. Other safety control
devices must not be connected. The maximum output current is 100 mA.
All further connected components (in example displays of digital outputs) and the safety control device
must not have higher current requirements.

8 Requirements to be met in operation

During operation, the projected and commissioned machine components must not be changed. If the
machine is modified a new acceptance inspection is required.
Check the safety function at regular intervals. The test intervals are to be determined according to the
risk analysis. However, the check should be performed once every year, at the latest.
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