54 Control locations and operating modes
Local control vs. external control
The drive has two main control locations: external and local. The control location is
selected with the LOC/REM key on the control panel or with the PC tool (Take/
Release button).
Local control
The control commands are given from the control panel keypad or from a PC
equipped with DriveStudio when the drive is in local control. Speed and torque control
modes are available for local control.
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 disabled by parameter 16.01 Local lock.
The user can select by a parameter (30.03 Local ctrl loss) how the drive reacts to a
control panel or PC tool communication break.
Control panel or PC tool
(DriveStudio)
(optional)
Fieldbus adapter
Fxxx in Slot 3
1) Extra inputs/outputs can be added by installing optional I/O extension modules (FIO-xx) in
drive Slot 1/2.
2) Encoder or resolver interface module (FEN-xx) installed in drive Slot 1/2
3) Two encoder/resolver interface modules of the same type are not allowed.
MOTOR
PLC
(= Programmable
logic controller)
M
3~
I/O
1) 3)
Drive-to-drive link or
EFB
External control
Local control
Encoder
2) 3)
ACS850
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