
57
AP
P
E
ND
IX
APPENDIX
Local Control vs. Remote Control
The ACS 140 can be controlled from two remote control locations or from the
control panel. Figure 17 below shows the ACS 140 control locations.
The selection between local control (LOC) and remote control (REM) can be
done by pushing the MENU and ENTER buttons simultaneously.
Figure 17 Control locations.
Local Control
The control commands are given explicitly from the control panel when the
ACS 140 is in local control. This is indicated by LOC on the control panel
display.
Parameter 1101
KEYPAD
REF
SEL
is used to select keypad reference, which
can be either
REF
1 (Hz) or
REF
2 (%). If
REF
1 (Hz) is selected, the type of
reference is frequency and it is given to the ACS 140 in Hz. If
REF
2 (%) is
selected, the reference is given in per cent.
If PID Control macro is used, reference
REF
2 is fed directly to the PID
controller as percentage. Otherwise, reference
REF
2 (%) is converted to
frequency so that 100 % corresponds to
MAXIMUM
FREQ
(parameter 2008).
Start/Stop/Direction,
Start/Stop/Direction,
EXT
2
EXT
1
Start/Stop/Direction,
Keypad Reference 1 (
REF
1, Hz)
(17(5
0(18
/2&5(0
mAVs
6(7
OUTPUTPAR MENU FWDREV
o
Crpm
%
REM
LOC
kHz
/2& 5(0
or Keypad Reference 2 (
REF
2, %)
External Reference 1 (Hz)
External Reference 2 (%)
OUTPUT
Hz
LOC
Содержание ACS 140
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