Connection examples ECC-DFC-..-00 supply

The ECC-DFC-..-00 fieldbus controller has 2 separate supply circuits. The connections are marked as MDR+ and LOGIC+.

The power section and the control board of the fieldbus controller are supplied by the main supply MDR+. The motor rollers are also supplied by the main supply MDR+.

The second voltage source connected to LOGIC+ supplies the control board. This means, the voltage source can be used for backup mode.

The following figures show the structure of the 2 variants.

Connection 24 V voltage source

[1]	Supply terminal fieldbus controller
[2]	24 V switched-mode power supply module (SELV)
K1	Contactor, disconnection 24 V circuit
F1	Fuse, supply switched-mode power supply (AC)
F2	Fuse, 24 V circuit (DC), optional

Connection of 2 24 V voltage sources

[1]	Supply terminal fieldbus controller
[2]	Switched-mode power supply, supply MDR+ and logic
[3]	Switched-mode power supply, backup voltage for logic
[4]	Disconnection circuit power section ECC-DFC
K1	Contactor, disconnection logic circuit
F1/F2	Fuse, supply power supply unit (AC)
F3/F4	Fuse, 24 V circuit (DC), optional