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3.3.2 Remote and Local modes
The inverter is available in either remote or local mode.
In remote mode, which applies to normal operation, the inverter is driven under the control of the data
setting stored in the inverter. In local mode, which applies to maintenance operation, it is separated
from the control system and is driven manually under the control by the keypad.
Holding down the key on the keypad for 2 seconds or more, toggles between remote and local
modes. Additionally, local mode is not kept after turning power on again. In other words, the inverter
starts up as remote mode always.
The current mode can be checked by the status icons. The
/
is displayed in remote
mode and the
is displayed in local mode.
Switching from remote to local mode automatically inherits the reference speed (pre-ramp) 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 kept ON. 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.
3.3.3 Setting up reference speed (pre-ramp)
In local mode, you can set up the desired reference speed (pre-ramp) in displayed units with /
keys on the keypad.
(1) Switch the keypad to Running mode. This is because in Programming or Alarm mode, the /
keys are disabled to set the reference speed (pre-ramp).
(2) Press the / key to display the current reference speed (pre-ramp). The lowest digit will
blink.
(3) To change the reference speed (pre-ramp), press the / key again. The new setting can be
saved into the inverter's internal memory.
Figure 3.5 Setting up reference speed (display example)
•
The reference frequency will be saved either automatically by turning the main power
OFF.
•
When you start specifying the reference speed (pre-ramp) or any other parameter with the
/ key, the least significant digit on the display blinks; that is, the cursor lies in the
least significant digit. Holding down the / key changes data in the least significant
digit and generates a carry, while the cursor remains in the least significant digit.
Using the / key moves the cursor (blinking) between digits, making change to the
large value easily.
Set. Speed
<Dig. Speed Ref>
0.00~1450.00
Ref. HAND
LOC
145
0
r/
min
RESET
PRG
Close
Speed command source
(See the table3.5)
Setting range
1450
r/
min
REM
PRG
Close
Set. Speed
<Remote Ref>
Ref. Multistep
RESET
SET
(In local mode)
(In remote mode)
3-7
Summary of Contents for Frenic lift
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