Remote Control - ABB ACS 400 User Manual

Remote Control

When the ACS 400 is in remote control (REM), the commands are given primarily through digital and
analogue inputs, although commands can be given also through the control panel or serial
communication.
Parameter 1102 1/
EXT
For 1, the source of the Start/Stop/Direction commands is defined by parameter 1001
EXT
, and the reference source is defined by parameter 1103
COMMANDS
reference 1 is always a frequency reference.
For 2, the source of the Start/Stop/Direction commands is defined by parameter 1002
EXT
, and the reference source is defined by parameter 1106
COMMANDS
reference 2 can be a frequency reference, or a process reference, depending on the application
macro selected.
In remote control, constant speed operation can be programmed by parameter 1201
. Digital inputs can be used to select between the external frequency reference and seven
SEL
configurable constant speeds (1202
Control
Terminals
Analogue
inputs
AI1, AI2
AI1-2, DI1-5
KEYPAD
Digital
inputs
DI1- DI5
Keypad
Ref
Loc / Rem
Figure 66 Selecting control location and control source.
142
2 selects between the two external control locations
EXT SELECT
CONST SPEED
2 1
EXT REF EXT REF
SELECT SELECT
1106 1103
AI1-2, DI1-5
KEYPAD
Remote
Applic
Local
(PID)
NOT SEL
DI1-DI5
KEYPAD
NOT SEL
DI1-DI5
KEYPAD
1 2
EXT EXT
COMMANDS
COMMANDS
1001 1002
1... 1208
CONST SPEED
1/ 2
EXT EXT CONST SP
KEYPAD
SELECT
SELECT
REF SEL
1102
1201
1101
EXT1
EXT2
DI1-DI5
Const.
Speeds
2 (%)
REF
1 (Hz)
REF
Local
EXT1
Remote
EXT2
1 . External
EXT REF SELECT
2 . External
EXT REF SELECT
CONST SPEED
7).
Remote
Local
REQUEST
FORWARD
REVERSE
DIRECTION
RUN ENABLE
1003
1601
ACS 400 User's Manual
1 and 2.
EXT EXT
1
EXT
2
EXT
Min freq
Max freq
Crit. speed
Acc/Dec
Start/Stop
Direction
Enabled,
DI1-DI5