Basic operation procedure (External operation)
Basic operation
4 - 26
4.6.3
Setting the frequency using an analog signal (voltage input)
Connection diagram
(The inverter supplies 5 V power to the frequency setting potentiometer (terminal 10).)
NOTES
Turn ON the STF (STR) signal to give a start command.
Use the frequency setting potentiometer to give a frequency command (by connecting it across
terminals 2 and 5 (voltage input)).
I002446E_G
Fig. 4-10:
Frequency setting by analog voltage input
Example
Operation example: Operate at 60 Hz.
Operation
Turning ON the power of the inverter
The monitor display turns ON.
Start
Turn ON the start switch (STF or STR). [FWD] or [REV] indicator flickers as no frequency command is given.
Acceleration
➔
constant speed
Turn the frequency setting potentiometer clockwise slowly to full. The frequency value indicated on the display
increases for the time set in Pr. 7 "Acceleration time", and is fixed at "
" (60.00 Hz). [FWD] indicator turns
ON during the forward rotation, and [REV] indicator turns ON during the reverse rotation.
Deceleration
Turn the frequency setting potentiometer counterclockwise slowly to full. The frequency value indicated on the
display decreases for the time set in Pr. 8 "Deceleration time", and the motor stops rotating at "
" (0.00 Hz).
[FWD] or [REV] indicator flickers.
$
Stop
Turn OFF the start switch (STF or STR). [FWD] or [REV] indicator turns OFF.
Tab. 4-17:
Operate the inverter by using the analog voltage input
NOTES
When both the forward rotation switch (STF) and the reverse rotation switch (STR) are turned ON,
the motor cannot be started. If both are turned ON while the motor is running, the motor deceler-
ates to a stop.
Pr. 178 "STF terminal function selection" must be set to "60" (or Pr. 179 "STR terminal function
selection" must be set to "61"). (Both settings are initial values.)
Parameters referred to
Pr. 7
Acceleration time
=>
Pr. 8
Deceleration time
=>
Pr. 178
STF terminal function selection
=>
Pr. 179
STR terminal function selection
=>
5
10
2
STF
STR
PC
Reverse rotation start
Switch
Forward rotation start
Inverter
Frequency setting
potentiometer
Potentiometer
Summary of Contents for FR-A820-00046 (0.4K)
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Page 144: ...System configuration for Ethernet communication FR A800 E Installation and wiring 2 114 ...
Page 202: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 1090: ...Check first when you have a trouble Protective functions 6 50 ...
Page 1189: ...Appendix EC Declarations of Conformity FR A800 A 49 ...
Page 1190: ...EC Declarations of Conformity Appendix A 50 ...
Page 1191: ...Appendix EC Declarations of Conformity FR A800 A 51 ...
Page 1192: ...EC Declarations of Conformity Appendix A 52 ...
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Page 1212: ...EC Declarations of Conformity Appendix A 72 A 7 2 FR A846 series ...
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