Connecting Communication; Energizing Merging Unit - ABB SMU615 Installation Manual

1MRS758405 C
5.7
5.8
SMU615
Installation Manual

Connecting communication

• Before connecting communication, check that the HW module has the correct
communication interfaces.
The communication module is located on the left side of the merging unit when
viewing the case from the rear.
See the technical manual for product-specific communication
interfaces.

Energizing merging unit

Before connecting the auxiliary power, check that the protective film
is removed from top of the merging unit.
• Before connecting the auxiliary power, check that the terminal strip is wired and
placed correctly.
• Remove the protective film from the top side of the unit. Check that there is no
debris visible in the ventilation holes.
During the start-up, all the LEDs are lit for a short period.
1. Green Ready LED starts to flash.
2. A steady green Ready LED indicates a successful start-up.
If the merging unit detects a diagnostic error during start-up, the green Ready LED
flashes.
Section 5
Connecting
43