B–21

L2002 Inverter

ModBus Holding Registers

The following tables list the holding registers for the inverter interface to the network. The table legend is given below.

•Function Code - The inverter’s reference code for the parameter or function (same as inverter keypad display)

•Name - The standard functional name of the parameter or function for the inverter

•R/W - The read-only or read-write access permitted to the data in the inverter

•Description - How the parameter or setting works (same as Chapter 3 description).

•Register - The network register address offset for the value, in hex and decimal. Actual network address is 40001 + offset. Some values have a high-byte and low-byte address.

•Range - The numerical range for the network value that is sent and/or received

TIP: The network values are binary integers. Since these values cannot have an embedded decimal point, for many parameters it represents the actual value (in engineering units) multiplied by a factor of 10 or 100. Network communications must use the listed range for network data. The inverter automatically divides received values by the appropriate factor in order to establish the decimal point for internal use. Likewise, the network host computer must apply the same factor when it needs to work in engineering units. However, when sending data to the inverter, the network host computer must scale values to the integer range listed for network communications.

•Resolution - This is the quantity represented by the LSB of the network value, in engineering units. When the network data range is greater than the inverter’s internal data range, this 1-bit resolution will be fractional.

List of Holding Registers

 

 

 

 

 

 

Network Data

 

Func.

 

 

 

 

 

 

 

 

Name

R/W

 

Description

Reg.ister

 

 

Code

 

Range

Res.

 

 

 

 

 

 

 

 

 

 

 

hex

dec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

—

Output frequency

 

Inverter output frequency (set

0002h

00002

0 to

0.1 Hz

 

command

 

A001=03 to enable this

 

 

4000

 

 

 

 

network register),

 

 

 

 

 

 

 

range is 0.0 to 400.0 Hz

 

 

 

 

 

 

 

 

 

 

 

 

—

Inverter status

R/W

00 ...Initial status

0003h

00003

0 to 9

—

 

 

 

01

...(Reserved)

 

 

 

 

 

 

 

02

...Stop Mode

 

 

 

 

 

 

 

03

...Run Mode

 

 

 

 

 

 

 

04

...Free-run stop (FRS)

 

 

 

 

 

 

 

05

...Jogging

 

 

 

 

 

 

 

06

...DC braking

 

 

 

 

 

 

 

07

...Retry

 

 

 

 

 

 

 

08

...Trip alarm

 

 

 

 

 

 

 

09

...Under-voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

B Appendix