3.3.7 Remote and local modes
The inverter is available in either remote or local mode. In the remote mode that applies to ordinary operation, the
inverter is driven under the control of the data settings stored in the inverter, whereas in the local mode that applies
to maintenance operation, it is separated from the control system and is driven manually under the control of the
keypad.
• Remote mode: Run and frequency commands are selected by function codes or source switching signals except
LOC (“Select local (keypad) command”).
• Local mode: The command source is the keypad, regardless of the settings specified by function codes. The
keypad takes precedence over the settings specified by communications link operation signals.
Run commands from the keypad in local mode
The table below shows the input procedures of run commands from the keypad in the local mode.
Data for F02 Input Procedures of Run Commands from Keypad
0: Enable /
keys on keypad
(Motor rotation direction from
digital terminals [FWD]/[REV])
Pressing the
key runs the motor in the direction specified by
command FWD or REV assigned to terminal [FWD] or [REV],
respectively. Pressing the key stops the motor.
1: Enable terminal command
FWD/REV
Pressing the key runs the motor in the forward direction only.
Pressing the key stops the motor.
No specification of the motor rotation direction is required.
2: Enable /
keys on keypad
(Forward)
3: Enable /
keys on keypad
(Reverse)
Pressing the key runs the motor in the reverse direction only.
Pressing the key stops the motor.
No specification of the motor rotation direction is required.
Switching between remote and local modes
The remote and local modes can be switched by a digital input signal provided from the outside of the inverter.
To enable the switching, you need to assign LOC as a digital input signal to any of terminals [X1] to [X5] by setting
“35” to any of E01 to E05, E98 and E99.
Switching from remote to local mode automatically inherits the frequency settings used in remote mode. If the motor
is running at the time of the switching from remote to local, the run command will be automatically turned ON so that
all the necessary data settings will be carried over. If, however, there is a discrepancy between the settings used in
remote mode and ones made on the keypad (e.g., switching from the reverse rotation in remote mode to the forward
rotation only in local mode), the inverter automatically stops.
The transition paths between remote and local modes depend on the current mode and the value (ON/OFF) of LOC,
as shown in the status transition diagram given Figure 3.3-3. Also, refer to above table for details
Figure 3.3-3 Transition between Remote and Local Modes by LOC
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