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2007-10-12

5011644001-LWT1

 

LonWorks Communication Module (CME-LW01) Instruction Sheet 

 Lonworks is a registered trademark of Echelon Corporation. 
 Please thoroughly read and understand the following contents to ensure correct use before operation. 
 The content of this instruction sheet may be revised without prior notice. Please consult our distributors or 

download the most updated version at http://www.delta.com.tw/industrialautomation

 

A. Introduction

 

Device CME-LW01 is used for communication interface between 
Modbus and LonTalk. CME-LW01 needs be configured via 
LonWorks network tool first, so that it can perform the function on 
LonWorks network. No need to set CME-LW01 address.

 

This manual provides instructions for the installation and setup for 
CME-LW01 that is used to communicate with Delta VFD-E 
(firmware version of VFD-E should conform with CME-LW01 
according to the table below) via LonWorks Network. The content 
of this instruction sheet may be revised without prior notice. 
Please consult our distributors or download the most updated 
version at http://www.delta.com.tw/industrialautomation.

 

 

Delta AC Drive 

Series 

Firmware Version 

VFD-E 

Version 2.02 or higher 

B. Dimensions 

5

7.

3

[2

.2

6]

72.2 [2.84]

59

.7

[2

.3

5]

9.

5

[0

.3

7]

3.5 [0.14]

34.8 [1.37]

SP

CME-LW 01

 

C. Specification 

Power supply 

16-30VDC, 750mW 

Communication 

Modbus in ASCII format, protocol: 9600, 7, N, 2 

LonTalk 

free topology with FTT-10A 78 Kbps 

LonTalk terminal 

4-pin terminal, wire gauge: 28-12 AWG, wire strip 
length: 7-8mm 

RS-485 port 

8 pins with RJ-45 

D. Wiring 

SP

CME-LW01

Power LED SP LED

Service LED

Service Pin

1: Reserved  

2: EV     

3: GND 

4: SG-            

5: SG+   

6: Reserved 

7: Reserved  

8: Reserved

LonTalk

1 2 3 4

LonTalk

 

 

 

Terminal definition for LonTalk system 

Terminal

Symbol 

Function 

 

 

These are twisted pair cables 
to connect to LonTalk system. 
Terminals 1 and 2 should be 
used as one group, and the 
same for terminals 3 and 4. 

E. LEDs 

Indications 

There are three LEDs in front panel of CME-LW01. If the 
communication is normal, power LED, SP LED should be green 
(red LED means abnormal communication) and service LED 
should be OFF. If LEDs display do not match, refer to user 
manual for details. 

 

 

Power LED 

State 

Description 

Corrective Actions 

Green LED

Power is on and 
CME-LW01 works 

 

LED is OFF

Power on or program is 
abnormal 

1. Check if power is 24V or 

plug is loose. 

2. Check if flash memory IC is 

well-inserted to the socket.

 

 

SP LED 

State 

Description 

Corrective Actions 

Green LED

It communicates to AC 
drive 

 

Blinked Green 

LED 

CME-LW01 reads default 
setting from AC drive 

 

Red LED 

Disconnect or time-out 

1. Check if cable is loose. 
2. Check if the communication 

protocol is properly set. 

 

 

Service LED 

State 

Description 

Corrective Actions 

LED blinks at 

1/2 Hz rate 

This is the normal 

situation for an 
un-configured device 

 

LED is OFF

Bad hardware device   

Check if anything wrong with 

power supply, clock or 
Neuron chip. 

LED is ON 

continuously, 
even when 
power is first 
applied to the 
device. 

Bad hardware device 

1.  Check if anything wrong 

with power supply, clock or 
Neuron chip. 

2.  Check if there is a short 

circuit between pin 17 and 
18. 

LED blinks at 

power-up, 
goes OFF, 
then ON 
solid. 

This is the normal 

situation for an 
application-less device. 

If the device is not an 

application-less, then it could 
be memory problems or 
application code errors. A 
self-test failure can also turn 
the LED ON solid. 

NOTE

 

Please download the XIF file and user manual at 
http://www.delta.com.tw/industrialautomation/

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