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1 About this documentation

1.3 Terminology used

Lenze · Decentralised frequency inverter 8400 motec (AS-Interface option) · EDS84DMOTASI EN 4.0 - 09/2013

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1.3 Terminology used

Term Meaning

AS-Interface The AS-Interface (actuator/sensor interface) ...

• is an international standard for fieldbus communication.

• is used in decentralised applications as fieldbus communication on the

lowest control level.

AS-i

Inverter Lenze frequency inverter of the "Inverter Drives 8400 motec" product series

Standard device

Drive Unit

Communication unit

Wiring Unit

The Inverter Drive 8400 motec has a modular structure. It consists of the

following modules: "Drive Unit", "Communication Unit" and "Wiring Unit".

• The drive unit is available in different power settings.

• The Communication Unit is available in the following versions:

•No fieldbus

• AS-i option

• CANopen option

•PROFIBUS option

•PROFINET option

•EtherCAT option

• EtherNet/IP option

• The wiring unit provides flexible connection possibilities for a simple

integration into the power supply of the machine.

»Engineer« Lenze PC software which supports you in "engineering" (parameter setting,

diagnosing, and configuring) during the entire life cycle, i.e. from planning to

maintenance of the commissioned machine.

Code Parameter which serves to parameterise or monitor the inverter. In general

linguistic usage, this term is also referred to as "index".

Subcode If a code contains several parameters, these are stored in "subcodes".

In this documentation, a slash "/" is used as a separator between code and

subcode (e.g. "C00118/3").

The term is usually called "subindex".

Lenze setting This setting is the default factory setting of the device.

Basic setting

HW Hardware

SW Software

CTT2 transmission

(Combined Transaction Type 2)

Serial data transmission is established between master and slave (clock in/out,

data in/out). This channel serves for ...

• acyclic transmission of data records;

• acyclic transmission of the extended process image.

Data set transmission In the case of CTT2 transmission, data records are transmitted between the

master and the slave only on request. During acyclic data record transmission,

the cyclic transmission of the extended process image is interrupted.

Process image In the case of the Inverter Drive 8400 motec, 4 bits of control data (PAA) are

transmitted to the slave every time the slave is called. The slave returns a

response containing 6 bits of information (PAE). The transmission is carried out

at least every 10 ms (AS-i cycle

( 31), depending on the addressing

assignment).

In the case of extended process images, continuous transmission of 4 bytes per

direction between the master and the slave takes place.

Parameter echo (diagnostics via

parameter data channel)

The "Write Parameter" AS-i command serves to transmit 4 parameter bits to the

slave.

In the response message, the slave returns 4 bits (16 bit combinations) of status

information.

ICs Circuits which efficiently perform the described tasks of a slave.

MCU Microcontroller

ASIC Application specific integrated circuit

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