Control Locations - ABB ACS 400 User Manual

Control Locations

The ACS 400 drive can receive control information from multiple sources, including digital I/O,
analogue I/O, keypad, and Modbus fieldbus.
To control the ACS 400 via the serial communication channel 1 (Modbus fieldbus), it must be
parameterised to accept control commands and/or frequency references from this channel. In
addition, ACS 400 must be in remote control.
The necessary parameters and their usage are listed in Table 20. Note especially, that before any
control commands can be given through serial communication channel 1, parameter 5006
value must be set to
COMMANDS
Further information on all the parameters and their alternative settings is given in chapter "ACS 400
Complete Parameter List" starting page 55.
Table 20 Parameters for control command source selection.
Code Parameter Name
Group 50
COMMUNICATION
5006
COMM COMMAND
Group 10
COMMAND INPUTS
1001 1
EXT COMMANDS
1002 2
EXT COMMANDS
1003
DIRECTION
Group 11
REFERENCE SELECT
1102 1/ 2
EXT EXT SEL
1103 1
EXT REF SELECT
120
.
STD MODBUS
Setting for
Alternative
Standard
Settings
Modbus
0 = 1 (
NOT SEL STD MODBUS
1 = ,
STD MODBUS
2 =
DDCS
0 = 10 (
NOT SEL COMM
1 = 1
DI
...
10 =
COMM
0 = 10 (
NOT SEL COMM
1 = 1
DI
...
10 =
COMM
1 = 3 (
FORWARD REQUEST
2 =
REVERSE
3 =
REQUEST
1 = 1 8 (
DI COMM
...
8 =
COMM
0 = 8 (
KEYPAD COMM
1 = 1 9 (
AI COMM
... or
8 = 10 (
COMM COMM
9 = + 1
COMM AI
10 = * 1
COMM AI
Function/Information
) Defines the serial communication channel
for the controlling commands (start, stop,
direction and reference). Must be set to 1
( ).
STD MODBUS
) Enables the Control Word (except bit 11)
when EXT1 is selected as control
location.
) Enables the Control Word (except bit 11)
when EXT2 is selected as control
location.
) Enables rotation direction control as
defined by parameters 1001 and 1002.
) Enables external control location EXT1/
EXT2 selection by Control Word bit 11.
), Fieldbus reference 1 is used when EXT1
+ 1) is selected as control location. See
AI
section References below for information
* 1) on the alternative settings.
AI
ACS 400 User's Manual
COMM