ABB UMC100.3 매뉴얼 - 페이지 8

{카테고리_이름} ABB UMC100.3에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. ABB UMC100.3 18 페이지. Modbus rtu communication module, universal motor controller

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U N I V E R S A L M OTO R C O N T R O L L E R U M C 1 0 0 . 3 | M R P 3 1 . 0 M O D B U S T C P C O M M U N I C AT I O N M O D U L E M A N U A L

Electrical installation

Modbus Connection

Connect Modbus to X3.

General

Arrange the communication cables as far away from the motor cables as possible. Avoid parallel runs. Use bushings at cable

entries.

—

Connector X3

Description

Bus cable shield. Connected internally to GND via a capacitor.

GND. Isolated signal ground

Data A (inverting)

Data B (non inverting)

Bus termination

Bus termination is required to prevent signal reflections from the bus cable ends. The MRP31 Modbus interface module is not

equipped with internal bus termination

Termination with an external termination resistor of 120 h between Data A and Data B should be foreseen on

devices located at bus ends.

Communication settings

The MRP31.0 communication settings are done using a control panel UMC100-PAN plugged onto a UMC100.3 (panel menu:

communication / Modbus RTU) and are copied then automatically to the MRP31.0. After changing communication settings

perform a power cycle.

Master supervision

It is possible to configure a maximal time without telegrams from the master before the UMC100.3 triggers the configured

busfault reaction.

Modbus bus timeout

Time range

0 ... 65535 ms

Default

0 ms (deactivated)

Baudrate

Supported baudrates

1200, 2400, 4800, 9600, 19200, 57600 Baud

Modbus data frame

• 8 E 1

(8 databits, even parity, 1 stopbit)

• 8 O 1

(8 databits, odd parity, 1 stopbit)

• 8 N 2

(8 databits, no parity, 2 stopbits)

• 8 N 1

(8 databits, no parity, 1 stopbit)

Slave address

Allowed addresses

If the MRP31.0 is used with an oldUMC100-FBP.0, then the baud rate is automatically set depending on the

bus address.

See the MRP21-FBP.xxx manual for additional information.

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