Power Supply; Sizing Of The Power Supply - Phoenix Contact ILC 131 ETH Installing And Operating Information

U
OUT
[V]
24
I
Figure 2-21 Overload range with fall-back characteristic
curve
8385_en_02
2.14

Power supply

The descriptions for the power supply apply to all the Inline controllers listed on the inner
cover page of this user manual.
2.14.1

Sizing of the power supply

Choose a power supply unit that is suitable for the currents in your application. The selection
depends on the bus configuration, the resulting maximum currents, and the type of supply
(separate supply of U
A power supply without a fall-back characteristic curve must be used for correct op-
eration of the Inline controller (see Figure 2-22).
When the Inline controller is switched on, an increased switch-on current is temporarily
triggered. The Inline controller behaves like a capacitive load when it is switched on.
Some electronically controlled power supplies have a fall-back characteristic curve (see
Figure 2-21). They are not suitable for operation with capacitive loads.
A primary-switched power supply (without fall-back characteristic curve) from the
QUINT POWER series (see current catalog from Phoenix Contact) is recommended for
Inline controller operation.
Overload range
with fall-back
characteristic curve
N
1.1 x I
2.4 x I
N
, U , and U , or supply from a power supply unit).
ILC M S
U
OUT
[ ] V
24
I
OUT
[A]
N
6219B070
Figure 2-22
Description of the Inline controller
Overload range
without fall-back
characteristic curve
I
N
Overload range without fall-back charac-
teristic curve
PHOENIX CONTACT
I
OUT
[ ] A
1.5 x I
N
6219B071
37