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Lenze i55AE155F User Manual

Lenze i55AE155F
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9.8.6 Funcon codes
The mode of access to inverter data (parameters) is controlled via funcon codes.
Frame structure
Modbus Applicaon Header (MBAP) Protocol Data Unit (PDU) CRC
Transacon
number
Protocol charac-
ters
(always 0x0000)
Number of the
bytes sll to fol-
low
Slave address Funcon code Data / error code Checksum
2 bytes
2 bytes 2 bytes
1 byte 1 byte n byte 2 bytes
Tab. 1: ADU (Applicaon Data Unit)
Communicaon is established on the basis of the master/slave mode. Communicaon is
always started by a master request.
The inverter (slave) then either gives a valid response or outputs an error code (provided that
the request has been received and evaluated as valid message).
In case of a valid answer, the funcon code is returned. In the event of an error, a funcon
code assigned to the request is returned.
Error causes can be invalid CRC checksums, non-supported funcon codes or impermissible
data accesses.
Elements of the ADU:
MBAP (7 bytes)
Number of the bytes sll to follow in the message.
Address of the inverter Basic sengs ^ 349.
The other bytes of the header are not described here.
Funcon code
The funcon codes exclusively refer to "4X registers", i. e. registers from the address
4000.
All data in the inverter can only be accessed via these 4X registers, see Data mapping
^ 360.
The 4xxxx reference is implicit, i. e. given by the funcon code used. In the frame there-
fore the leading 4 is omied in the addressing process.
Lenze supports the basic 1 addressing of Modbus, i.e. the numbering of the registers
starts with 1 whereas addressing starts with 0. For example, the address 0 is used in
the frame when register 40001 is read.
Data or error code
Checksum
All ADU contents are represented in the Big Endian format (most signicant byte rst).
Funcon codes
Funcon code Funcon code in the event of an
error
Supported error codes
0x03 0x83 0x01, 0x02, 0x03, 0x04
0x06 0x86 0x01, 0x02, 0x03, 0x04
0x10 0x90 0x01, 0x02, 0x03, 0x04
0x17 0x97 0x01, 0x02, 0x03, 0x04
Funcon code Funcon name Info
3 0x03 Read Holding Registers Reading of a single register or a group of several interconnected regis-
ters.
6 0x06 Preset Single Register Wring of a single register.
16 0x10 Preset Mulple Registers Wring of a single register or a group of several interconnected registers.
23 0x17 Read/Write 4X Registers Reading and wring within a transacon:
Wring of a data block into a group of several interconnected regis-
ters.
Reading from a block of interconnected registers.
Conguring the network
Modbus TCP
Funcon codes
355

Table of Contents

Questions and Answers:

Lenze i55AE155F Specifications

General IconGeneral
BrandLenze
Modeli55AE155F
CategoryInverter
LanguageEnglish

Summary

General Information

Read First, Then Start

Provides essential starting guidance and safety instructions before proceeding with installation and commissioning.

Safety Instructions

Basic Safety Measures

Outlines fundamental safety precautions to prevent severe personal injury and material damage.

Electrical Installation

Connection of the Safety Module

Describes the connection of the safety module, including critical warnings about automatic restart.

Commissioning

Important Notes

Provides critical warnings about incorrect wiring and settings during commissioning, emphasizing safety checks.

Save Parameter Settings in the Memory Module

Details how to save parameter settings using the keypad or the EASY Starter software for mains failure protection.

Diagnostics and Fault Elimination

LED Status Display

Explains the meaning of "RDY" and "ERR" LEDs on the inverter for quick information on operating states.

Error Handling

Discusses how the inverter detects errors, protects components, and handles operating errors, warnings, and faults.

Data Handling

Describes inverter behavior when memory module data does not match hardware or firmware, covering automatic and manual loading/saving.

Basic Setting

Mains Voltage

Explains how the rated mains voltage impacts the inverter's operating range and provides a table of settings.

Starting/Stopping Performance

Covers starting performance options like DC braking or flying restart circuit, and stopping performance methods like coasting or quick stop.

Quick Stop

Describes the "quick stop" function as an alternative stop method for faster motor stopping, including its triggers and parameters.

Motor Control

Motor Data

Explains how to set motor data manually, covering parameters like pole pairs, rated speed, frequency, power, and current.

Motor Control Selection

Details the different modes for closed-loop/open-loop motor control supported by the inverter.

Optimisation of Motor Control

Covers functions for further optimizing drive behavior, including V/f voltage boost, skip frequencies, and oscillation damping.

Optimisation of the Control Loops

Covers options for improving total system power by selecting motors, tuning controllers, and performing automatic identification/calibration.

Motor Protection

Covers various monitoring functions to protect the device or motor from destruction or overload.

Configuring the Network

General Network Settings

Covers activating network control, network control words, status words, and data mapping for network registers.

Configuring the Process Controller

Basic Process Controller Settings

Details basic settings for PID control, including activating PID, configuring analog inputs, and selecting setpoint sources.

Additional Functions

Device Commands

Covers device commands for calling organizational functions like saving, loading, and resetting parameter settings.

DC Braking

Details the DC braking function, which generates braking torque by injecting DC current into the motor.

Access Protection

Covers write access protection for inverter parameters via keypad and EASY Starter, restricting parameterization.

Mains Failure Control

Explains the function that decelerates the motor during power failure using rotational energy to maintain DC-bus voltage.

Safety Functions

Safe Torque Off (STO)

Explains the STO function for safely switching off the drive immediately and its operating principle.

Flexible I/O Configuration

Control Source Change-over

Details how to configure the start, stop, and reversal commands flexibly via digital inputs, keypad, or network.

Start / Stop Motor

Covers configuration of triggers for basic motor functions like enable, run, quick stop, and reverse.

Setpoint Change-over

Explains how to change setpoint sources during operation using functions like analog inputs, keypad, network, presets, and MOP.

Reset Error

Explains how to reset an active error by using the "Reset Fault" function or cancelling the start command.

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