ELC500 Control unit
9
Restrictions of Power Supply Selection and Combination
1.5
Power Supply for Internal Circuit
1.5.1
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Restrictions of power supply for interenal circuit and unit combination
Power supply for internal circuit is supplied by power supply unit or power supply terminal of ELC500.
Select unit according to the below explaination.
With power supply unit
Without power supply unit
Via internal bus to each unit
External power supply I/O unit
100 to 240V AC High-function unit
Via internal bus to each unit
External I/O unit
power supply High-function unit
24V DC
The total value of the internal current
consumption of units to be connected does not
exceed the capacity of the power supply unit.
The total value of the internal current
consumption of units to be connected does not
exceed 3A. *1
*1 In case of using in the ambinet temperature 50 degreeC, the current consumption of unit shoudl be in
the below range.
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Selection of 24V DC power supply
Select a power supply with the capacity of equal to or larger than the capacity of the unit.
In addition, select a power supply of 24 W or more even in the minimum configuration.
To protect against abnormal voltage from the power supply line, Use an isolated type power supply
with built-in protection circuit.
When using the power supply without built-in protection circuit, be sure to use a protection element
such as fuse.
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Output current of power supply unit (24V)
Product name
Model No.
Rated output current
Power suppluy unit
100 to 240V AC, 24W
AFP7PSA1
1A
100 to 240V AC, 43W
AFP7PSA2
1.8A
Note
When using the power supply unit, do not connect DC power supply to ELC500.
