Selection Of Power Supply And Restrictions On Combination; Power Supply For Internal Circuit - Panasonic AFP7PSA1 User Manual

Overview
1.3 Selection of Power Supply and Restrictions on
Combination

1.3.1 Power Supply for Internal Circuit

 Restrictions on combination of power supply for internal circuit and units
 Power for internal circuit is supplied from a power supply terminal of the power supply unit or
the CPU unit.
 Select units within the respective restrictions indicated below.
When a power supply unit is used
Select units so that the sum of internal current
consumptions of connected input/output units and
intelligent units does not exceed the capacity of the
power supply unit.
 Selection of a 24V DC power supply
 Select a power supply larger than the capacity of the units. In the minimum configuration,
select a power supply of 24 W or larger.
 In order to protect the unit against abnormal voltage from the power supply line, the power
supply should be an insulated type, and should be enclosed within a protective circuit.
 If using a power supply device without an internal protective circuit, always make sure power
is supplied to the unit through a protective element such as a fuse.
NOTE
When a power supply unit is used, do not connect a DC power supply to the CPU unit.
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When no power supply unit is used
Select units so that the sum of internal current
consumptions of connected input/output units and
intelligent units does not exceed Max. 2 A.