ABB FMBA-01 Manuale d'uso - Pagina 12

Sfoglia online o scarica il pdf Manuale d'uso per Unità di controllo ABB FMBA-01. ABB FMBA-01 16. Modbus adapter module

Electrical installation

This chapter contains:

• instructions for setting the bus termination

• instructions for connecting the module to the RS-485 network.

WARNING! Before installation, switch off the drive power supply.

Wait five minutes to ensure that the capacitor bank of the drive is

discharged. Switch off all dangerous voltages connected from

external control circuits to the inputs and outputs of the drive.

General cabling instructions

Arrange the bus cables as far away from the motor cables as

possible. Avoid parallel runs. Use bushings at cable entries.

RS-485 cable is connected to connector X1 on the FMBA-01

Modbus Adapter module.

SHLD

DATA_B Data positive

DATA_A Data negative

GND_B

Description

Bus cable shield. Connected internally to

GND_B via an RC filter and directly to

CH_GND (chassis).

Isolated signal ground

Electrical installation