Local Control Vs. Remote Control; Local Control; Appendix A - ABB ACS 400 User Manual

Appendix A

Local Control vs. Remote Control

The ACS 400 can be controlled from two remote control locations or from the control panel. Figure
59 below shows the ACS 400 control locations.
The selection between local control (LOC) and remote control (REM) is accomplished by pushing
the MENU and ENTER buttons simultaneously when the ACS100-PAN is used, and by pushing the
LOC/REM button when the ACS-PAN is used.
EXT1
Start/Stop/Direction,
External Reference 1 (Hz)
Figure 59 Control locations.

Local Control

The control commands are given explicitly from the control panel when the ACS 400 is in local
control.
Parameter 1101
KEYPAD REF SEL
or 2 (%). If 1 (Hz) is selected, the type of reference is frequency and it is given to the
REF REF
ACS 400 in Hz. If
REF
If PID Control macro or PCF macro is used, reference
percentage. Otherwise, reference
(parameter 2008).
MAXIMUM FREQ
ACS 400 User's Manual
LOC
REM
OUTPUTPAR
is used to select keypad reference, which can be either
2 (%) is selected, the reference is given in per cent.
2 (%) is converted to frequency so that 100 % corresponds to
REF
http://nicontrols.com
Start/Stop/Direction,
Keypad Reference 1 (
or Keypad Reference 2 (
mA Vs
kHz %
o
Crpm
SET MENU FWDREV
MEN U
LOC REM L O C R E M
ENTER
2 is fed directly to the PID controller as
REF
1, Hz)
REF
2, %)
REF
EXT2
Start/Stop/Direction,
External Reference 2 (%)
1 (Hz)
REF
151