8
Electrical connection
6
The unit must be connected by a qualified electrician�
The national and international regulations for the installation of electrical
equipment must be adhered to�
Voltage supply to EN50178, SELV, PELV�
For units with cULus approval and the scope of validity cULus: The device shall
be supplied from an isolating transformer having a secondary Listed fuse rated as
noted in the following table�
Overcurrent protection
Control-circuit wire size
Maximum protective device rating [A]
AWG
[mm
2
]
22
0�32
3
20
0�52
5
18
0�82
7
16
1�3
10
14
2�1
20
12
3�3
25
Disconnect power�
►
Connect the unit as follows:
►
Normal operation
Programming operation
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Pin 1
Ub+
Pin 3
Ub-
Pin 4 (P)
P = communication via EPS / FDT interface
Pin 2 (OUT2)
analogue output for system pressure
Core colours of ifm sockets:
1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black)