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Control Circuit - Mitsubishi Electric FR-F820-00046 Instruction Manual

Fr-f800 series.
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2.6

Control circuit

2.6.1
Details on the control circuit terminals
 Input signal
Terminal
Type
Terminal name
symbol
Forward rotation
*1
STF
start
Reverse rotation
*1
STR
start
STP
Start self-holding
*1
selection
(STOP)
RH, RM,
Multi-speed
*1
selection
RL
Jog mode selection
*1
JOG
Pulse train input
Second function
*1
RT
selection
*1
Output stop
MRS
*1
Reset
RES
Terminal 4 input
*1
AU
selection
*1
(No function)
CS
Contact input
common (sink)
External transistor
SD
common (source)
24 VDC power
supply common
External transistor
common (sink)
PC
Contact input
common (source)
24 VDC power
supply
58
2. INSTALLATION AND WIRING
2.6 Control circuit
Terminal function description
Turn ON the STF signal to start forward
rotation and turn it OFF to stop.
Turn ON the STR signal to start reverse
rotation and turn it OFF to stop.
Turn ON the STP (STOP) signal to self-hold the start signal.
Multi-speed can be selected according to the combination of RH,
RM and RL signals.
Turn ON the JOG signal to enable JOG operation (initial setting)
and turn ON the start (STF or STR) signal to start JOG operation.
Terminal JOG is also used as a pulse train input terminal. To use
as a pulse train input terminal, change the Pr.291 setting.
(maximum input pulse: 100k pulses/s)
Turn ON the RT signal to enable the second function.
When the second function such as "Second torque boost" and
"Second V/F (base frequency)" is set, turning ON the RT signal
enables the selected function.
Turn ON the MRS signal (20 ms or more) to stop the inverter
output.
Use this signal to shut off the inverter output when stopping the
motor with an electromagnetic brake.
Use this signal to reset a fault output provided when a protective
function is activated.
Turn ON the RES signal for 0.1 seconds or longer, then turn it
OFF.
In the initial setting, reset is always enabled. By setting Pr.75,
reset can be enabled only at an inverter fault occurrence. The
inverter recovers about 1 second after the reset is released.
The terminal 4 function is available only when the AU signal is
ON.
Turning the AU signal ON makes terminal 2 invalid.
Use Pr.186 CS terminal function selection for function
assignment.
Common terminal for the contact input terminal (sink logic),
*3
terminal FM.
Connect this terminal to the power supply common terminal of a
transistor output (open collector output) device, such as a
*4
programmable controller, in the source logic to avoid malfunction
by undesirable current.
Common terminal for the 24 VDC power supply (terminal PC,
terminal +24).
Isolated from terminals 5 and SE.
Connect this terminal to the power supply common terminal of a
transistor output (open collector output) device, such as a
*3
programmable controller, in the sink logic to avoid malfunction by
undesirable current.
Common terminal for contact input terminal (source logic).
*4
Can be used as a 24 VDC 0.1 A power supply.
Rated specification
When the STF and STR
signals are turned ON
simultaneously, the
Input resistance: 4.7 kΩ,
stop command is given.
voltage when contacts
are open: 21 to 27 VDC,
current when contacts
are short-circuited: 4 to
6 mADC
Input resistance: 2 kΩ,
current when contacts
are short-circuited: 8 to
13 mADC
Input resistance: 4.7 kΩ,
voltage when contacts
are open: 21 to 27 VDC,
current when contacts
are short-circuited: 4 to
6 mADC
Power supply voltage
range: 19.2 to 28.8
VDC, permissible load
current: 100 mA
Refer
to page
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