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25. SPECIFICATIONS
25.4 Definition of Terminals
STR
RH
(Note)
-
RWAU
(Note)
-
RUOH
(Note)
-
ARS/RT
(Note)
RES
SD
-
PC
10
Name
9C power supply
input
terminals
Inverter
outprt
terminals
Braka
resistor terminals
Brake unit terminal
Groudicg termlnal
Fomerd rotation start
signal input terminal
Reverse rotation start
signal input terminal
Mukiile-speed
selection terminal (high.
selection terminal
(middle-spwd)
Current
input
selection
terminal
Multple-speed
selection terminal (low-
speed)
External
thermal relay signal
input
sel&
terminal
O u t p u t
shutdf terminal
Second acceleration/
deceleration selection
terminal
Reset terminal
Control circuit commm
External transistor
common terminal
Power supply tenninal
for frequency reference
De.alptlon
For incoming commercial
power
WKQIY.
DO
not c o n A power
supply
*rhen m
g
FR-HC
option
. . .
ovtpa
for a three-phase squirrel
cage
motor.
For
M o p t i
brake
resislor
For connectinp
an
OptiMal
brake unil
For grounding h e lnwwter chassis. Ground to the earth.
By ck&g
the
terminals STF and SD.
the
I f
circuits across
motor accelerates forward to
tha
rdaence
the motor stop
reverse
to
the reference
s p e e d .
The
it
is regarded
as
STR and SD, the motor
accelerates
in
simultrnusb,
By dosing
the
drcuit
m o b s
terminab
are closed
circuit a C r w
the
tminals
is
opened.
STR and
SD
speed. The motor s. t c+s rotating when the
STF and SD.
mmrnand.
motor stops rotatkg when
it
is opened.
By
the
open and close state comblnations of RH and SD,
RM
and
SD. RL
and
SD, seven preset speeds may
be
referenced.
RM is
also
used
as the current input selection
terminal (AU)
and
RL the external
thermal
relay signal input
selection
terminal
(OH).
Factorpsetting
is
for muttiple-speed
s e ! e 3 i i .
I f
AU and SD
IS
closed, operation is possible wing
the
4
to 2
m4
DC current frequency reference signal. If a
contaCt point
dgnal
of an external
thermal
relay is input to
OH
and SD the inverter operation
will
stopped by tnpping
the
thermal relay (contact break).
Invecter oulput
is
halted by closing
MRS
and
SD.
This
terminal
is elso
used
as
the 2nd acceleratioddecelatim
t i ,
2nd torque
boost
and 2nd
V F selection
terminal (RT).
Fsctory-wtthg b
for hverter output halt.
The terminal
is used
to release
the
protection function circuit
activated
state
which
is
retained. M e r
cbsing RES
and SD
for a t
least 0.1
s e c o n d s ,
open
I&
and
fault
condaion
will be
m t .
The common tenninal for contau input and m
y unl
terminals.
It is
isolated from
the commcn terminal
of
the
To
conned
tha
t - t o r
output ( o m
cdledor wtput) of a
reference circuit
programmable controller, connect the axtemal power supp~y
common terminal for
the
trarsMor output to
thii
terminal.
This prevents manunctioning
of the
inverter
due
to transistor
leakage cummt.
5
VDC. Maximum
permissible load
current:
10
m A
-
123
-
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