Lenze MCH Series Drives Metasys N2 Manual de usuario descargar pdf (Pagina 6)

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Introduction

2 Introduction

This document will explain how to operate a Lenze-AC Tech MCH Variable Frequency Drive using Metasys

N2 protocol. It is intended as a serial communications supplement only and will not discuss normal

drive operations. For more information regarding normal drive setup and functionality, refer to the MCH

Installation and Operation Manual (MH01).

2.1 Metasys N2 Communications

MCH drives running N2 protocol act as N2 devices on a Metasys® Network and function as slaves only.

Thus the device communicating with an MCH drive must be an N2 master. The communication rate is 9600

bps with 8 data bits, no parity, 1 start bit and 1 stop bit. The bit sequence is as follows:

DATA

START 1 2 3 4 5 6 7 8 STOP

2.2 Serial Communications Wiring

Figure 1 illustrates the MCH Series Terminal Strip and connections for the N2 Metasys network.

21 5A 5B 6 10A 10B 2 13A12A 13B 13C 13D 14 15 2 TXBRXA 16 17 18

Reference

N2-

N2+

Figure 1: MCH Terminal Strip

The N2+ terminal is connected to MCH drive terminal RXA

The N2- terminal is connected to MCH drive terminal TXB

The N2 Reference is connected to MCH drive terminal 2.

1 2 3 4 5 6 7 8 9 10 11 ... 14 15

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Lenze MCH Series Drives Metasys N2 Manual de usuario Pagina 6