Motor Overload Protection; Fieldbus Communication; Warnings And Faults - ABB ACS880-31 Quick Installation And Start-Up Manual

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Motor overload protection

The factory motor overload protection is not enabled by default. Motor thermal overload protection can use motor
temperature sensors, 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 sensors, 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.
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Use the information key ( ) on the drive control panel for more information on setting group 35 parameters. You must set
the drive overload parameters correctly, or motor damage can occur.
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Fieldbus communication

To configure the embedded fieldbus communication for Modbus RTU you must set at least these parameters:
Parameter
20.01 Ext1 commands
22.11 Speed ref1 source
26.11 Torque ref1 source
28.11 Frequency ref1 source
58.01 Protocol enable
58.03 Node address
58.04 Baud rate
58.05 Parity
58.06 Communication control Refresh settings
Other parameters related to the fieldbus configuration:
58.14 Communication loss
action
58.15 Communication loss
mode
58.16 Communication loss
time

Warnings and faults

Warning Fault Aux. code
A2A1 2281 Current calibration
- 2310 Overcurrent
A2B3 2330 Earth leakage
A2B4 2340 Short circuit
- 3130 Input phase loss
- 3181 Wiring or earth fault
A3A1 3210 DC link overvoltage
A3A2 3220 DC link undervoltage
- 3381 Output phase loss
- 5090 STO hardware failure
A5A0 5091 Safe torque off
A7CE 6681 EFB comm loss
A7C1 7510 FBA A communication
AF80 7580 INU-LSU comm loss
- 7583 Line side unit faulted
14.
Setting Description
Embedded Selects fieldbus as the source for the start and stop commands when
fieldbus EXT1 is selected as the active control location.
EFB ref1 Selects a reference received through the embedded fieldbus interface
as speed reference 1.
EFB ref1 Selects a reference received through the embedded fieldbus interface
as torque reference 1.
EFB ref1 Selects a reference received through the embedded fieldbus interface
as frequency reference 1.
Modbus RTU Initializes embedded fieldbus communication.
1 (default) Node address. There must be no two nodes with the same node
address on-line.
19.2 kbps (default) Defines the communication speed of the link. Use the same setting as
in the master station.
8 EVEN 1 (default) 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.
58.17 Transmit delay
58.25 Control profile
58.26 EFB ref1 type
Description
Warning: Current calibration is done at the next start.
Fault: Output phase current measurement fault.
The output current is more than the internal limit. This can also be caused by
an earth fault or phase loss.
A load unbalance that is typically caused by an earth fault in the motor or the
motor cable.
There is a short-circuit in the motor or the motor cable.
The intermediate DC circuit voltage oscillates due to missing input power
line phase.
Incorrect input and motor cable connection.
Intermediate DC circuit voltage is too high.
Intermediate DC circuit voltage is too low.
All three phases are not connected to the motor.
STO hardware diagnostics has detected hardware failure. Contact ABB.
The Safe torque off (STO) function is active.
Break in embedded fieldbus communication.
Communication lost between drive (or PLC) and fieldbus adapter.
DDCS communication between converters is lost.
The supply unit (or other converter) connected to the inverter unit has
generated a fault.
58.28 EFB act1 type
58.31 EFB act1 transparent
source
58.33 Addressing mode
58.34 Word order
58.101 Data I/O 1
...
58.124 Data I/O 24
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