Technical data

68 OM 1191
Fieldbus Adapter
Fieldbus Adapter
Control Word
The CONTROL WORD is the principal means for controlling
thedrivefromaeldbussystem.Theeldbuscontroller
sends the CONTROL WORD to the drive. The drive switches
between states according to the bit-coded instructions in the
CONTROL WORD. Using the CONTROL WORD requires
that:
• The drive is in remote (REM) control.
• Theserialcommunicationchannelisdenedasthe
source for controlling commands from EXT1 (set using
parameters 1001 EXT1 COMMANDS and 1102 EXT1/
EXT2 SEL).
• Theexternalplug-ineldbusadapterisactivated:
— Parameter9802COMMPROTSEL=4(EXTFBA).
— Theexternalplug-ineldbusadapterisconguredto
usethedriveprolemodeordriveproleobjects.
The content of the CONTROL WORD depends on the
protocol/profileused.Seetheuser’smanualprovidedwith
theFBAmoduleand/ortheDaikindrivesprofiletechnical
d
ata.
Status Word
The STATUS WORD is a 16-bit word containing status
information,sentbythedrivetotheeldbuscontroller.The
content of the STATUS WORD depends on the protocol/
profileused.Seetheuser’smanualprovidedwiththeFBA
moduleand/ortheDaikindrivesprofiletechnicald
ata
section.
Reference
The contents of each REFERENCE word:
• Can be used, as speed or frequency reference.
• Is a 16-bit word comprised of a sign bit and a 15-bit
integer.
• Negative references (indicating reversed rotation
direction) are indicated by the two’s complement of the
corresponding positive reference value.
The use of a second reference (REF2) is supported only
whenaprotocolisconfiguredfortheDaikinDrivespr
ofile.
Referencescalingiseldbustypespecic.Seetheuser’s
manual provided with the FBA module and/or the following
sections as appropriate:
•
Daikindrivesprofiletechnicaldata
• Genericproletechnicaldata
Actual Values
Actual Values are 16-bit words containing information on
selected operations of the drive. Drive Actual Values (for
example, group 01 parameters) can be mapped to Input Words
using group 51 parameters (protocol-dependent, but typically
parameters 5104…5126).
NOTE: This is not required with MicroTech III controls.
Planning
Network planning should address the following questions:
• What types and quantities of devices must be connected
to the network?
• What control information must be sent down to the
drives?
• What feedback information must be sent from the drives
to the controlling system?