Danfoss iC2 User Manual

Application Guide | iC2-Micro Frequency Converters
l Reset after a fault trip.
l Run at various preset speeds.
l Run in reverse.
l Change of the active set-up.
l Control of the 2 relays built into the drive.
The bus reference is commonly used for speed control. It is also possible to access the parameters, read their values, and where possible,
write values to them. Accessing the parameters offers a range of control options, including controlling the setpoint of the drive when its
internal PI controller is used.
6.1.6.2 FC Protocol Message Framing Structure
6.1.6.2.1 Content of a Character (byte)
Each character transferred begins with a start bit. Then 8 data bits are transferred, corresponding to a byte. Each character is secured via
a parity bit. This bit is set at 1 when it reaches parity. Parity is when there is an equal number of 1s in the 8 data bits and the parity bit in
total. A stop bit completes a character, consisting of 11 bits in all.
Start
bit
Even
parity
Stop
bit
0 1 2 3 4 5 6 7
e95na036.10
Figure 55: Content of a Character
6.1.6.2.2 Telegram Structure
Each telegram has the following structure:
l Start character (STX) = 02 hex.
l A byte denoting the telegram length (LGE).
l A byte denoting the drive address (ADR).
Several data bytes (variable, depending on the type of telegram) follow.
A data control byte (BCC) completes the telegram.
ST
X
L
GE
ADR DATA BCC
e95na099.10
Figure 56: Telegram Structure
6.1.6.2.3 Telegram Length (LGE)
The telegram length is the number of data bytes plus the address byte ADR and the data control byte BCC.
Table 24: Length of Telegrams
4 data bytes LGE=4+1+1=6 bytes
12 data bytes LGE=12+1+1=14 bytes
Telegrams containing texts 10
(1)
+n bytes
1) The 10 represents the fixed characters, while the n is variable (depending on the length of the text).
Danfoss A/S © 2024.03 AB413939445838en-000301 / 130R1254 | 77

Danfoss iC2 Specifications

General

Type	iC2
Manufacturer	Danfoss
Supply voltage [V] DC	24
Housing material	Plastic
Ingress Protection	IP20
Relative Humidity	Max. 95% RH, non-condensing

Summary

Introduction and Safety

Safety Symbols

General Safety Considerations

Highlights essential safety guidelines for installing and operating AC drives.

Qualified Personnel

Application Software Overview

Basic Functions

Motor Control Features

Braking of Load

Protection Features

Describes features that protect the drive, motor, and connected components.

User Interfaces and How to Configure

Control Panel

Provides an overview of the control panel, its elements, features, and usage.

MyDrive® Insight

Configuration Setup Examples

Basic Setup of a Drive

Outlines the essential steps for configuring grid, operation mode, and control place.

Setting up the Drive using Quick Access via Control Panel

Provides a step-by-step guide for configuring the drive using the quick access feature.

Motor Configuration

Details the setup process for asynchronous and permanent magnet motors.

Application Selection

Explains how to select integrated application functions and pre-configured parameter settings.

Reference Handling

RS485 Configurations

RS485 Installation and Set up

Details the installation and setup procedures for RS485 communication.

FC Protocol

Modbus RTU

Parameter Descriptions

Reading the Parameter Table

Grid (Menu Index 1)

Power Conversion & DC-link (Menu Index 2)

Filters & Brake Chopper (Menu Index 3)

Motor (Menu Index 4)

Provides detailed descriptions of motor-related parameters.

Troubleshooting

Faults

Details the different trip conditions (auto restart, reset, trip lock) for faults.

Warnings

Warning/Fault Messages

Warning and Fault Events

Summarizes common warning and fault events, their causes, and trip conditions.

Fault Words, Warning Words, and Extended Status Words

List of Faults and Warnings

Details specific warnings and faults, their causes, and troubleshooting steps.