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24V logic input
voltage
19-28V AC RMS,
single phase or
18.75-31.25V DC
Allen-Bradley PLCs
User-Supplied 24V Logic Input Power
The table below shows the requirements for the 24V logic input
power that you must supply.
Current
Frequency
If you have:
1 axis
2 axis
50/60 Hz
3 axis
4 axis
Note: The power supply should be rated for 15A or greater inrush current upon power up.
Input Transformer for 24V Control Power
You can use any general purpose transformer with the following
ratings.
The requirements for:
Input volt-amperes
Input voltage
Output voltage
Load regulation
If the input volt-amperes is more than 350 VA, adjust the load
regulation to make the transformer leakage the same as or greater
than the 250 VA transformer with 2% regulation.
Specifications
The current draw for
user-supplied power
supply must not
exceed:
3.5A
4.4A
5.2A
6.0A
For a 480V system is:
For a 360V system is:
200 to 259 VA
200 to 259 VA
480V RMS
360V RMS
24V RMS
24V RMS
2 to 5%
2 to 5%
A-5
Recommended Fuse
Bussmann MDA-15
or equivalent
Publication 1394-5.20 — July 2001
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