ABB ACS880-01 Series Manuale di installazione e avviamento rapido - Pagina 11
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13.
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
35.11
parameter
and subsequent parameters through
overload Class is defaulted to 20 and selectable in parameter
?
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 could occur.
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
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
A7AB
-
Extension I/O
configuration failure
AFF6
-
Identification run
14.
35.55
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.
Refresh settings
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.
The I/O extension module types and locations specified by parameters do
not match the detected configuration.
The motor ID run occurs at the next start.
. To enable motor Class curves set parameter
35.57
.
58.28 EFB act1 type
58.31 EFB act1 transparent
source
58.33 Addressing mode
35.56
. Motor
58.34 Word order
58.101 Data I/O 1
...
58.124 Data I/O 24
11