Control Circuit; Details On The Control Circuit Terminals - Mitsubishi Electric FR-A800 Series Instruction Manual

2.6

Control circuit

2.6.1

Details on the control circuit terminals

 Input signal
Terminal
Type Common
symbol
*1
STF
*1
STR
STP
*1
(STOP)
RH
RM
*1
RL
*1
JOG
SD
(sink
(negative
common))
PC
*1
RT
(source
(positive
common))
*1
MRS
*1
RES
*1
AU
*1
CS
68
2. INSTALLATION AND WIRING
2.6 Control circuit
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Terminal name
Turn ON the STF signal to start
Forward rotation
forward rotation and turn it OFF to
start
stop.
Turn ON the STR signal to start
Reverse rotation
reverse rotation and turn it OFF to
start
stop.
Start self-holding Turn ON the STP (STOP) signal to self-hold the start
selection signal.
Multi-speed Multi-speed can be selected according to the
selection combination of RH, RM and RL signals.
Turn ON the JOG signal to enable JOG operation
Jog mode selection (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
Pulse train input
the Pr.291 setting.
(maximum input pulse: 100k pulses/s)
Turn ON the RT signal to enable the second function.
Second function When the second function such as "Second torque
selection 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 stop
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 second or longer, then turn it OFF.
Reset 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
Terminal 4 input
signal is ON.
selection
Turning the AU signal ON makes terminal 2 invalid.
Selection of When the CS signal is left ON, the inverter restarts
automatic restart automatically at power restoration. Note that restart
after instantaneous setting is necessary for this operation. In the initial
power failure setting, a restart is disabled.
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Terminal function description
When the STF
and STR signals
are turned ON
simultaneously,
the stop
command is
given.
Refer
Rated specification to
page
722
Input resistance: 4.7
kΩ,
voltage when contacts
are open: 21 to 27
722
VDC,
current when contacts
are short-circuited: 4 to
411
6 mADC
410
Input resistance: 2 kΩ,
current when contacts
406
are short-circuited: 8 to
13 mADC
525
524
Input resistance: 4.7
kΩ,
voltage when contacts
are open: 21 to 27
VDC, 336
current when contacts
are short-circuited: 4 to
6 mADC
496
628,
635