ABB ACS560, Firmware Manual

Page: 34 / 514

34 Program features

Local control
The control commands are given from the control panel keypad or from a PC
equipped with Drive composer when the drive is in local control. Speed control mode
is available in vector motor control mode and frequency mode is available when
scalar motor control mode is used (see parameter
19.16 Local control mode ).
Local control is mainly used during commissioning and maintenance. The control
panel always overrides the external control signal sources when used in local control.
Changing the control location to local can be prevented by parameter
19.17 Local
control disable .
The user can select by a parameter ( 49.05 Communication loss action ) how the drive
reacts to a control panel or PC tool communication break. (The parameter has no
effect in external control.)

External control
When the drive is in external (remote) control, control commands are given through
• the I/O terminals (digital and analog inputs), or optional I/O extension modules
• the fieldbus interface (via the embedded fieldbus interface or an optional fieldbus
adapter module).
Control panel or Drive composer
PC tool (optional)
Fieldbus adapter (Fxxx)
MOTOR
PLC
(= Programmable
logic controller)
I/O
Embedded fieldbus
interface
External control
Local control
Drive
M
3~