Input/Outputterminal - Mitsubishi Electric FR-K-400-U Instruction Manual

11. INPUT/OUTPUT TERMINAL
Description
7
Terminal
symbol
Terminal name
Rating
When FR-K-400 is used with single-phase power
supply, connect it at terminals R and S.
R.S.T.
E
U.V.W.
4C powered supply
n p u t terminal
- -
Sround terminal Be sure t o ground both inverter and the panel box
which encloses inverier.
--
Output terminals for
n o t o r
Connection for three-phase induction motor.
I
3utput terminals for
:onverter
Terminals for connection of regenerative brake
unit.
Never connect anything other than brake unit t o
these terminals.
'ower supply ter-
ninal for frequency
setting
5V DC
?
0.01V DC
Allowable load
current: 6 mA
Use these terminals as power supplies for external
setters such as the variable resistor for frequency
Setting (motor speed setting).
Terminals for inpilt
iignal of frequency
lnput resistor
11
k a ?
1
kc2
lnput resistor 2.5
kc2
Open voltage
14 t o 20V DC
Optoelectronic
isolator
Controllable by
means of open-
collector.
Maximum frequency (60Hz. 120Hz, or 240Hzl
is obtained at 5 V (1OV).
STF-SD
STR-SD
lnput terminal for
forward start signal
Forward start by closing terminals between STF
and SD, stoppage by opening them
Reverse start by closing terminals between STR
SD, stoppage by opening them.
Closing terminals between STF and SD, and STR
SD simultaneously causes stop command.
lnput termial for
-everse start signal
3utput terminal for
irequency meter
~ ~~
-
Appromixately 5 V DC is obtained at maximum
frequencies (60Hz. 120H2, or 240Hz) and output
voltage is in proportion with the frequencies.
Connect moving-coil type ampere meter (DC
1 mA) with terminals FM and SD. Use calibration
variable resistor 10K 1/3W by inserting it i n series
FM-SD Allowable load
current: 1 mA
Optoelectronic iso-
!ator output voltage
form i s oulse.
RES-SD
B-C
Input terminal fol
;ignal
lnput resistor 4.7
kc2
Open voltage
14 t o 20V DC
Optoelectronic iso-
lator
Controllable by
means of open-
controller
For resetting emergency stop of the inverter
caused by the activation o f protection circuit.
Resetting initializes each part of the control
circuit immediately, and the circuit t o inverter and
converter i s shut off. T o give this reset command,
it is necessav t o short-circuit across terminals RES
and SD for 0.1 second or more. Initial reset is
automatically performed inside the controller
0.2 t o 0.4 seconds later after power up.
-
Contact output
230V AC 0.3A
cos@
=
0.4
30V DC 0.3A
3utput terminal for
alarm
Normally closed contact that provides alarm signal
when protective circuit is activated.
When this signal is provided, power t o the con-
verter and inverter are cut o f f and the motor will
stop after free running.