Motor Overload Protection - ABB ACS880-04 Kurzanleitung Für Die Installation

Motor overload protection

￭
The factory motor overload protection is not enabled by default. Motor thermal
overload protection can be measured using motor temperature devices, can be
estimated using a motor model defined by parameters, or can use measured motor
current and motor Class curves. To enable protection using motor model parameters
or measurement devices set parameter 35.11 and subsequent parameters through
35.55. To enable motor Class curves set parameter 35.56. Motor overload Class is
defaulted to 20 and selectable in parameter 35.57.
Use the information key (
group 35 parameters. You must set the drive overload parameters correctly, or motor
damage could occur.
Fieldbus communication
￭
To configure the embedded fieldbus communication for Modbus RTU, you must set
at least these parameters:
Parameter Setting
20.01 Ext1 commands Embedded fieldbus
22.11 Speed ref1 source EFB ref1
26.11 Torque ref1 source EFB ref1
28.11 Frequency ref1 EFB ref1
source
58.01 Protocol enable Modbus RTU
58.03 Node address 1 (default)
58.04 Baud rate 19.2 kbps (default)
58.05 Parity 8 EVEN 1 (default)
58.06 Communication Refresh settings
control
Other parameters related to the fieldbus configuration:
58.14 Communication 58.17 Transmit delay
loss action
?
) on the drive control panel for more information on setting
Description
Selects fieldbus as the source for the start and stop
commands when EXT1 is selected as the active control
location.
Selects a reference received through the embedded
fieldbus interface as speed reference 1.
Selects a reference received through the embedded
fieldbus interface as torque reference 1.
Selects a reference received through the embedded
fieldbus interface as frequency reference 1.
Initializes embedded fieldbus communication.
Node address. There must be no two nodes with the
same node address on-line.
Defines the communication speed of the link. Use the
same setting as in the master station.
Selects the parity and stop bit setting. Use the same
setting as in the master station.
Validates any changed EFB configuration settings. Use
this after changing any parameters in group 58.
58.28 EFB act1 type
EN – Quick installation instructions 17
58.34 Word order
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