94
Remote Control
When the ACS140 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
EXT1/EXT2 SELECT selects between the two external control
locations
EXT1 and EXT2.
For EXT1, the source of the Start/Stop/Direction commands is defined by
parameter 1001
EXT1 COMMANDS, and the reference source is defined by
parameter 1103
EXT REF1 SELECT. External reference 1 is always a frequency
reference.
For
EXT2, the source of the Start/Stop/Direction commands is defined by
parameter 1002
EXT2 COMMANDS, and the reference source is defined by
parameter 1106
EXT REF2 SELECT. External 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
CONST SPEED SEL. Digital inputs can be used to select
between the external frequency reference and seven configurable constant
speeds (1202
CONST SPEED 1... 1208 CONST SPEED 7).
Figure 24 Selecting control location and control source.
Control
Terminals
Analogue
inputs
AI1, AI2
EXT REF2
SELECT
1106
Ext ref1
SELECT
1103
Ext1/ext2
SELECT
1102
CONST SP
SELECT
1201
AI1-2,DI1-5
EXT1
EXT2
KEYPAD
AI1-2,DI1-5
Remote
KEYPAD
Local
Applic
(PID)
Remote
Local
DI1-DI5
Const.
speeds
Min freq
Max freq
Crit. sp.
Acc/Dec
KEYPAD
REF
SEL
1101
Digital
inputs
DI1-DI5
Keypad
Ref
Loc/Rem
REF2 (%)
REF1 (Hz)
Start/Stop, Direction
NOT SEL
DI1-DI5
KEYPAD
NOT SEL
DI1-DI5
KEYPAD
EXT
1
EXT2
Local
Remote
REQUEST
FORWARD
REVERSE
Start/Stop
Direction
Enabled,
DI1-DI5
RUN ENABLE
1601
DIRECTION
1003
EXT2
COMMANDS
1002
EXT1
COMMANDS
1001
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