Beckhoff EP31 Series

Mounting and cabling
EP31xx 37Version: 2.4
3.3.2 Status LEDs
Fig.16: Status LEDs for the power supply
LED Display Meaning
U
S
(control voltage) off Supply voltage, U
S
, is not present
green illuminated Supply voltage, U
S
, is present
U
P
(peripheral voltage) off Supply voltage, U
P
, is not present
green illuminated Supply voltage, U
P
, is present
3.3.3 Conductor losses
Take into account the voltage drop on the supply line when planning a system. Avoid the voltage drop being
so high that the supply voltage at the box lies below the minimum nominal voltage.
Variations in the voltage of the power supply unit must also be taken into account.
Voltage drop on the supply line
Vert. Faktor: 0,45 cm / V
5 10 15 20
2
4
6
8
10
250
0
12
30
Vert. Faktor: 0,45 cm / V
Voltage drop (V)
Cable length (m)
35
0,25 mm²
0,34 mm²
0,5 mm²
0,75 mm²
I = 2 A
Vert. Faktor: 0,45 cm / V
5 10 15 20
2
4
6
8
10
250
0
12
30
Vert. Faktor: 0,45 cm / V
Voltage drop (V)
Cable length (m)
35
0,25 mm²
0,34 mm²
0,5 mm²
0,75 mm²
I = 4 A