ABB FENA-21 User Manual

Modbus/TCP – Start-up 81
 Parameter setting examples – ACS580
Frequency control using the ABB Drives – Enhanced
communication profile
This example shows how to configure a frequency control
application that uses the ABB Drives - Enhanced profile. In
addition, some application-specific data is added to the
communication.
The start/stop commands and reference are according to the ABB
Drives profile. For more information, see section ABB Drives
communication profile on page 87.
In the frequency control mode, when Reference 1 (REF1) is used,
a reference value of ±20000 (4E20h) corresponds to the reference
set with parameter 46.02 Frequency scaling in the forward and
reverse directions.
The minimum and maximum 16-bit integer values that can be
given through the fieldbus are -32768 and 32767 respectively.
The table below gives the recommended drive parameter settings.
Output data Modbus
register
Input data Modbus
register
Control word (4)00001 Status word (4)00051
Frequency reference (4)00002 Frequency actual value (4)00052
Reference 2 (Not
used)
(4)00003 Actual value 2 (Not
used)
(4)00053
Constant frequency 1
1)
(4)00004
(4)00005
Power
1)
(4)00054
(4)00055
Constant frequency 2
1)
(4)00006
(4)00007
DC bus voltage
1)
(4)00056
(4)00057
1)
Example
Drive parameter Setting for ACS580
drives
Description
50.01 FBA A enable 1 = Option slot 1
2)
Enables communication between
the drive and the fieldbus adapter
module.
50.02 FBA A comm loss
func
1 = Fault
2)
Enables fieldbus A
communication fault monitoring.

ABB FENA-21 Specifications

General

Brand	ABB
Model	FENA-21
Category	Adapter
Language	English