Commands; Local/Remote Operation Modes - WEG CFW08 Vector inverter User Manual

DETAILED PARAMETER DESCRIPTION

6.2.5 Commands

6.2.6 Local/Remote
Operation Modes
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The inverter has the following commands: PWM pulse enabling/disabling,
definition of the direction of rotation and JOG.
As the reference, the inverter commands can de defined in several ways.
The command sources are the following:
via keypad - keys
via control terminals (XC1) - digital inputs;
via serial interface.
The inverter enabling and disabling commands can be defined as follows:
via keypad and
via serial;
start/stop (terminals XC1 - DI(s) - see P263 ... P266);
general enable (terminals XC1 - DI(s) - see P263 ... P266);
forward run
It defines also the direction of rotation;
ON/OFF (3-wire controls) (terminals XC1 - DIs - see P263 e P264).
The definition of the direction of rotation can be defined by using:
the key of the keypad;
serial;
digital input (DI) programmed for FWD/REV (see P264 ... P266);
digital inputs programmed as FWD / REV, that defines both inverter
enabling or disabling and direction of rotation (see P263 e P264);
analog input - when the reference is via analog input and a negative
offset is programmed (P236 or P240<0), the reference
assume negative values, thus reversing the direction of the motor
rotation.
User can define two different conditions relating to the frequency reference
source and the inverter commands: these are the local and the remote
operation modes.
Figure 6.3 shows the local and remote operation modes in a block diagram.
With the factory setting in local mode the inverter can be controlled by
using the keypad, while in remote mode all controls are via terminals
(XC1).
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