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3.1 Pre-Operation Information
OPERATION/CONTROL
43
3 OPERATION/CONTROL
3.1 Pre-Operation Information
3.1.1 Devices and parts to be prepared for operation
The inverter can be operated in any of the "external operation mode", "PU operation mode", "combined
operation mode" and "communication operation mode". Prepare required instruments and parts according to
the operation mode.
(
1
)
External operation mode
(
factory setting
)
The inverter is operated under the control of external
operation signals (frequency setting potentiometer,
start switch, etc.) connected to the terminal block.
With input power on, switch on the start signal (STF,
STR) to start operation.
Preparation
•
Start signal...................................Switch, relay, etc.
DU04
PU04
Potentiometer
Inverter
Start switch
•
Frequency setting signal ..............0 to 5V, 0 to 10V or 4 to 20mA DC signals or multiple speeds from a
potentiometer or outside the inverter
Note: Both the start signal and frequency setting signal are required to run the inverter.
(
2
)
PU operation mode
The inverter is operated from the keypad of the PU
(FR-DU04/FR-PU04).
This mode does not require the operation signals to
be connected and is useful for an immediate start of
operation.
Preparation
DU04
PU04
Inverter
•
Operation unit...............................Operation panel (FR-DU04), parameter unit (FR-PU04)
•
Connection cable .........................To be prepared for use of the operation unit away from the inverter.
FR-CB2 (option) or the following connector and cable available on the
market:
Connector: RJ45 connector
Cable : Cable conforming to EIA568 (e.g. 10BASE-T cable)
(
3
)
External/PU combined operation mode
The inverter is operated with the external operation
and PU operation modes combined in any of the
following ways:
1) The start signal is set with the external signal and
the frequency setting signal set from the PU.
2) The start signal is set with the run command key of
the PU (FR-DU04/FR-PU04) and the frequency
setting signal set with the external frequency setting
potentiometer.
PU PU
Potentiometer
Inverter
Start switch