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Terminology used
8
Lenze · Decentralised frequency inverter 8400 motec (AS-Interface option) · EDS84DMOTASI EN 5.0 - 02/2019
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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 8400 motec inverter has a modular structure that includes the following
modules: "Drive Unit", "Communication Unit", and "Wiring Unit".
• The drive unit is available in different power settings.
• In case of the communication unit you can select between:
• Without fieldbus (basic I/O, standard I/O, extended I/O)
• AS interface (without safety/with safety STO)
• CANopen (without safety/with safety STO)
• EtherCAT (without safety/with safety STO)
• EtherNET/IP (without safety/with safety STO)
• PROFIBUS (without safety/with safety STO)
• PROFINET (without safety/with safety STO)
• POWERLINK (without safety/with safety STO)
• 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 during the "Engineering" process
(parameterisation, diagnostics, and configuration) throughout the whole life
cycle, i. e. from planning to maintenance of the machine commissioned.
Code Parameter which serves to parameterise and monitor the inverter. In normal
usage, the term is usually referred to as "Index".
Subcode If a code contains several parameters, they are stored in "subcodes".
This manual uses a slash "/" as a separator between code and subcode
(e.g. "C00118/3").
This term is also referred to as "subindex" in common parlance.
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
( 32), 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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