Lenze AC Tech SMVector RS-485 LECOM Communication Module Bedienungsanleitung

SMVector RS-485 LECOM Communication Module

Communications Interface Reference Guide

This documentation applies to the RS-485 / LECOM communications option for the SMVector inverter and should be

used in conjunction with the SMVector Operating Instructions (Document SV01) that shipped with the drive. These

documents should be read in their entirety as they contain important technical data and describe the installation and

operation of the drive and this option.

WARNING!

The information in this document is based on RS-485 LECOM Communication Module software version 1.20. If a

future revision of software contains differences in the register numbering or register deﬁnitions, drive operation

could be seriously affected. If drive parameter P494 does not display 1.20, then writing to any drive register over

the network MUST NOT BE ATTEMPTED as it would have the potential for unexpected consequences potentially

resulting in damage to the equipment or harm to personnel. Future releases of module software require that the

appropriate documentation be used for implementation.

NOTE

To use the LECOM option of the RS-485 communication module with the SMVector (0.33-10HP) requires standard

software version 3.0 or later. All SMVector 15HP (11kW) and higher models support the LECOM option on the

RS-485 communication module.

No part of this documentation may be copied or made available to third parties without the explicit written approval of

Lenze AC Tech Corporation.

All information given in this documentation has been carefully selected and tested for compliance with the hardware

and software described. Nevertheless, discrepancies cannot be ruled out. We do not accept any responsibility nor

liability for damages that may occur. Any necessary corrections will be implemented in subsequent editions.

About these instructions

CMVLC401A

Contents

1 Safety Information .....................................................................................................................................................2

1.1 General ........................................................................................................................................................................ 2

1.2 Application ................................................................................................................................................................... 2

1.3 Installation .................................................................................................................................................................... 2

1.4 Electrical Connection .................................................................................................................................................... 2

1.5 Operation ..................................................................................................................................................................... 3

2 Introduction ...............................................................................................................................................................4

2.1 Module Speciﬁcations .................................................................................................................................................. 4

2.2 Module Identiﬁcation Label ........................................................................................................................................... 4

3 Installation .................................................................................................................................................................5

3.1 Mechanical Installation ................................................................................................................................................. 5

3.2 RS-485 Terminal Block................................................................................................................................................. 6

3.3 Electrical Installation..................................................................................................................................................... 6

3.3.1 Cable Types ................................................................................................................................................. 6

3.3.2 Network Limitations ..................................................................................................................................... 6

3.3.3 Connections and Shielding ........................................................................................................................... 6

3.3.4 Network Termination ................................................................................................................................... 7

4 Parameters for use with RS-485/LECOM ....................................................................................................................8

4.1 Drive Communication Parameters................................................................................................................................. 8

4.2 RS485 LECOM-Speciﬁc Parameters ............................................................................................................................. 9

5 LECOM Protocol Details ...........................................................................................................................................10

5.1 LECOM - A/B Protocol Description .............................................................................................................................. 10

5.2 Controller address (AD1, AD2) .................................................................................................................................... 10

5.3 Code Number (C1, C2) ................................................................................................................................................ 11

5.3.1 Standard Addressing.................................................................................................................................. 11

5.3.2 Addressing via Code Bank ......................................................................................................................... 11

5.3.3 Addressing via Input Selection ................................................................................................................... 12

5.3.4 Extended Addressing ................................................................................................................................. 12

5.4 Parameter Value (V1 to Vn) ......................................................................................................................................... 12

5.5 Block-Check Character (BCC) ..................................................................................................................................... 14

6 LECOM Message Details ..........................................................................................................................................15

6.1 Telegram Response .................................................................................................................................................... 15

6.2 Receive Telegram ....................................................................................................................................................... 15

6.3 Receive Telegram Response ....................................................................................................................................... 15

6.4 Send Telegram ........................................................................................................................................................... 16

6.4 Broadcast / Multicast .................................................................................................................................................. 17

7 Commissioning ........................................................................................................................................................18

7.1 Drive Monitoring ......................................................................................................................................................... 18

7.2 Drive Programming and Control .................................................................................................................................. 18

7.3 Network Watchdog Timer ........................................................................................................................................... 18

7.3.1 Watchdog Timer ........................................................................................................................................ 18

7.3.2 Watchdog Time-out Period (P425).............................................................................................................. 18

7.3.3 Watchdog Time-out Action (P426) .............................................................................................................. 18

8 Drive Registers ........................................................................................................................................................19

8.1 Conﬁguration and Control Registers ............................................................................................................................ 19

8.1.1 C1050 (Network Controlled Digital Output) ................................................................................................. 22

8.1.2 C1055 (Network Controlled Analog Output) ................................................................................................ 22

8.1.3 C1099 (Parameter Version) ........................................................................................................................ 22

9 Programming Parameters ........................................................................................................................................23

9.1 Fault History (P500) .................................................................................................................................................... 23

9.2 Drive ID (P502) ........................................................................................................................................................... 24

9.3 Terminal and Protection Status (P530) ........................................................................................................................ 25

9.4 Keypad Status (P531) ................................................................................................................................................. 25

10 Troubleshooting and Fault Elimination ......................................................................................................................26

10.1 Faults ......................................................................................................................................................................... 26

10.2 Troubleshooting.......................................................................................................................................................... 26

2 CMVLC401A

Safety Information

1 Safety Information

1.1 General

Some parts of Lenze controllers (frequency inverters, servo inverters, DC controllers) can be live, moving and rotating.

Some surfaces can be hot.

Non-authorized removal of the required cover, inappropriate use, and incorrect installation or operation creates the risk

of severe injury to personnel or damage to equipment.

All operations concerning transport, installation, and commissioning as well as maintenance must be carried out by

qualiﬁed, skilled personnel (IEC 364 and CENELEC HD 384 or DIN VDE 0100 and IEC report 664 or DIN VDE0110 and

national regulations for the prevention of accidents must be observed).

According to this basic safety information, qualiﬁed skilled personnel are persons who are familiar with the installation,

assembly, commissioning, and operation of the product and who have the qualiﬁcations necessary for their occupation.

1.2 Application

Drive controllers are components designed for installation in electrical systems or machinery. They are not to be used

as appliances. They are intended exclusively for professional and commercial purposes according to EN 61000-3-2.

The documentation includes information on compliance with EN 61000-3-2.

When installing the drive controllers in machines, commissioning (i.e. the starting of operation as directed) is prohibited

until it is proven that the machine complies with the regulations of the EC Directive 2006/42/EC (Machinery Directive);

EN 60204 must be observed.

Commissioning (i.e. starting drive as directed) is only allowed when there is compliance to the EMC Directive (2004/108/

EC).

The drive controllers meet the requirements of the Low Voltage Directive 2006/95/EC. The harmonised standards of the

series EN 50178/DIN VDE 0160 apply to the controllers.

The availability of controllers is restricted according to EN 61800-3. These products can cause radio interference

in residential areas. In the case of radio interference, special measures may be necessary for drive controllers.

1.3 Installation

Ensure proper handling and avoid excessive mechanical stress. Do not bend any components and do not change any

insulation distances during transport or handling. Do not touch any electronic components and contacts. Controllers

contain electrostatically sensitive components, which can easily be damaged by inappropriate handling. Do not damage

or destroy any electrical components since this might endanger your health! When installing the drive ensure optimal

airﬂow by observing all clearance distances in the drive's user manual. Do not expose the drive to excessive: vibration,

temperature, humidity, sunlight, dust, pollutants, corrosive chemicals or other hazardous environments.

1.4 Electrical Connection

When working on live drive controllers, applicable national regulations for the prevention of accidents (e.g. VBG 4) must

be observed.

The electrical installation must be carried out in accordance with the appropriate regulations (e.g. cable cross-sections,

fuses, PE connection). Additional information can be obtained from the regulatory documentation.

The regulatory documentation contains information about installation in compliance with EMC (shielding, grounding,

ﬁlters and cables). These notes must also be observed for CE-marked controllers. The manufacturer of the system or

machine is responsible for compliance with the required limit values demanded by EMC legislation.

CMVLC401A

Safety Information

1.5 Operation

Systems including controllers must be equipped with additional monitoring and protection devices according to the

corresponding standards (e.g. technical equipment, regulations for prevention of accidents, etc.). You are allowed to

adapt the controller to your application as described in the documentation.

DANGER!

• After the controller has been disconnected from the supply voltage, do not touch the live components

and power connection until the capacitors have discharged. Please observe the corresponding

notes on the controller.

• Do not continuously cycle input power to the controller more than once every three minutes.

• Close all protective covers and doors during operation.

WARNING!

Network control permits automatic starting and stopping of the inverter drive. The system design must

incorporate adequate protection to prevent personnel from accessing moving equipment while power

is applied to the drive system.

Table 1: Pictographs used in these instructions

Pictograph Signal Word Meaning Consequences if Ignored

DANGER! Warning of Hazardous

Electrical Voltage.

Reference to an imminent danger that may

result in death or serious personal injury if

the corresponding measures are not taken.

WARNING! Impending or possible

danger for persons

Death or injury

STOP! Possible damage to

equipment

Damage to drive system or its

surroundings

NOTE Useful tip: If observed, it will

make using the drive easier

4 CMVLC401A

Introduction

2 Introduction

This reference guide assumes that the reader has a working knowledge of the LECOM Protocol and familiarity with the

programming and operation of motion control equipment. This guide is intended as a reference only.

2.1 Module Speciﬁcations

Table 2 identiﬁes the LECOM serial communication speciﬁcations. If the speciﬁcation is ﬁxed (non-adjustable) the value

is shown under “Range”, if the speciﬁcation is selectable, the table identiﬁes the Parameter and available range of

selections.

Table 2: LECOM Serial Communication

Description Type Range

Network Address Selectable P410 (1 - 99)

Baud Rate Selectable P411 (9600, 4800, 2400, 1200, 19200 bps)

Data Bits Fixed 7

Parity / Stop Bits Fixed Even/1

Typical communications between master and slave would be:

• Write commands from Master

−Run command

−Frequency Reference

−Modiﬁcation of Drive operating parameters

• Requests from Master

−Reporting of drive status

−Fault status (and fault history)

2.2 Module Identiﬁcation Label

Figure 1 illustrates the labels on the SMV RS-485 communications module. The SMVector RS-485 module is identiﬁable by:

• Two labels afﬁxed to either side of the module.

• The color coded identiﬁer label in the center of the module.

A: Fieldbus Protocol

B: Model Number

C: Lenze Order Number

D: Firmware Revision

E: Hardware Revision

SMV RS-485

TYPE: ESVZAR0

ID-NO: 12345678

ESVZAR0-000XX1A10

Left-hand Label:

Module Data

Right-hand Label:

Ratings & Certifications

Fieldbus Identifier:

R = RS-485 (Modbus RTU/LECOM)

LISTED

COMM I/O ONLY

S/N: 123456789

Figure 1: RS-485 Module Labels

CMVLC401A

Installation

3 Installation

3.1 Mechanical Installation

1. Ensure that for safety reasons the AC supply has been disconnected before opening the terminal cover.

2. Insert the RS-485 option module in the terminal cover and securely “click” into position as illustrated in Figure 2.

3. Wire the network cables to the connector provided, as detailed in paragraphs 3.2 (RS-485 Terminal Block) and 3.3

(Electrical Installation), and plug the connector into the option module.

4. Align terminal cover for re-ﬁtting, connect the module umbilical cord to the drive then close the cover and secure,

as shown in Figure 3.

7mm

<_ 2.8 mm

(12-22 AWG)

0.5 Nm/ 4.5 lb-in

12345

NEMA 1 (IP31) Models NEMA 4X (IP65) Models

Figure 2: Installing the RS-485 Communications Module

NEMA 1 (IP31) Models NEMA 4X (IP65) Models

Figure 3: Re-installing the Terminal Cover

6 CMVLC401A

Installation

3.2 RS-485 Terminal Block

For a LECOM network, wire the RS-485 connector as detailed in Table 3.

Table 3: RS-485 Pin Designation

Terminal Description Important RS-485 Connector

1 Earth ground / shield For reliable communication make sure terminal is

connected to the LECOM network GND/common. If

only two wires are used (TXA and TXB) in the network,

connect Terminal 1 to chassis/earth ground.

12345

2 TXA If controller is located at either end of the network,

a terminating resistor (120ohm typical) should be

connected across TXA and TXB

3 No connection

4 TXB

5 No connection

Protection against contact

• All terminals have basic isolation (single insulating distance)

• Protection against contact can only be ensured by additional measures (i.e. double insulation)

3.3 Electrical Installation

3.3.1 Cable Types

For RS-485 LECOM-B networks, use a quality shielded twisted pair cable. The use of low quality cable will result in

excess signal attenuation and data loss.

3.3.2 Network Limitations

There are several limiting factors that must be taken into consideration when building an RS-485 LECOM network:

• LECOM-B networks are limited to: 31 devices (w/o repeaters); 90 w/ repeaters).

• Topology: Without repeaters: line; with repeaters: line or tree.

• Maximum total network length is 1200 m depending on the baud rate and cable used.

• Minimum of 1 meter of cable between nodes.

3.3.3 Connections and Shielding

To ensure good system noise immunity all networks cables should be correctly grounded:

• Minimum grounding recommendation: ground the network cable once in every cubical.

• Ideal grounding recommendation: ground the network cable on or as near to each drive as possible.

• For wiring of cable to the connector plug the unscreened cable cores should be kept as short as possible;

recommended maximum of 20mm. The shield connection of terminal 1 should also be wired to earth (PE).

20mm

max

Connect to

drive earth

(PE)

123 4 5

Figure 4: Connector Wiring Diagram

CMVLC401A

Installation

3.3.4 Network Termination

For an RS-485 network it is essential to install the speciﬁed termination resistors (120W), i.e. one at both ends of a network

segment. Failure to do so will result in signals being reﬂected back along the cable which will cause data corruption.

An external 120W 1/4W resistor can be connected as shown in Figure 5.

20mm

max

Connect to

drive earth

(PE)

123 4 5

120Ω

1/4W

Figure 5: Network Termination Resistor

8 CMVLC401A

Commissioning

4 Parameters for use with RS-485/LECOM

4.1 Drive Communication Parameters

The parameters listed in Table 5 are always present on the drive, even if there is no communication module installed.

Table 5: Drive Communication Parameters

Code Possible Settings IMPORTANT

No. Name Default Selection

P400 Network Protocol 0 Not Active

1 Remote Keypad

2 Modbus RTU

7 LECOM-B

P401 Module Revision 01.0.0 Display reads 01.x.x where:

01 = RS485/Remote Keypad Module

x.x = Module Revision

Read only

P402 Module Status 0 0 Not Initialized Read only

1 Initialization: Module to EPM

2 Initialization: EPM to Module

3 Online the communications between the drive

and module are working properly.

4 Failed Initialization Error

5 Time-out Error

6 Initialization Failed Module type mismatch ( 0)

7 Initialization Error Protocol Selection mismatch ( 0)

P403 Module Reset 0 0 No Action

1 Reset Module parameter values to

default.

Returns module parameters 401…499 to

the default values shown in this manual.

P404 Module Time-out

Action

3 0 Ignore • Action to be taken in the event of an

SPI Time-out.

• SPI Time-out is ﬁxed at 200ms.

1 STOP (refer to 11 )

2 Quick Stop

3 Fault ( n)

P405 Network Fault 0 0 No Fault Read only, see P425 and P426

1 Network Time-out, F

P406 Proprietary Module speciﬁc Read only

NOTE:

If this parameter returns a value of 16, the software version in this SMVector drive

does not support the LECOM functionality. Contact factory technical support.

P498 Missed Messages

Drive to Module

Read only

P499 Missed Messages

Module to Drive

Read only

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