FE FRENIC-Multi series, Instruction Manual

Page: 120 / 196

5-45
„
Undervoltage detected -- LU (Function code data = 3)
This output signal comes ON when the DC link bus voltage of the inverter drops below the
specified undervoltage level, and it goes OFF when the voltage exceeds the level.
This si n the undervoltage pr activated so that tor
is i .g., tripped).
When i comman d if given.
„
Torque polarity detected -- B/ 4)
The inv tects larity ulated torque and issues the g or
braking larity signa s digit e calculat rque
is the driving one, an es ON
„
Inv er output li -- IOL 5)
This ou ut signal comes ON wh cy by ting
any of the following action
• Torque limiting (F 1, E16
• Current limiting by are (F
• Inst ous ov t lim
• Automatic deceler ti-r
• Overload stop (Hit cal
gnal is ON also whe
mal
otective function is the mo
n an abnor
this signal
stop state (e
s ON, a run d is disable
D (Function code data =
erter de the po of the internally calc drivin
po l to thi
d it go
al output. This signal comes OFF when th
when it is the braking one.
ed to
ert miting (Function code data =
tp en the inverter is limiting the output frequen
: 100 ms).
activa
s (minimum
40, F4
width of the output signal
and E17)
softw 43 and F44)
antane ercurren iting by hardware (H12 = 1)
ation (An egenerative control) (H69 = 2 or 4)
) mechani stop) (J65 = 3
When the gnal i utput frequency m ave
iated fr frequ command becau this
fun
„
Auto-restarting af menta IPF (Function code data = 6)
This output signal is her d a momentary power or
during period fro n the oltage condition ut
down the output un art ha d (the output has reached the r ence
freque
To en s IPF si et F14 ode after momentary power failure) to e
restar start at th ency failure occurred)" or "5: Ena art
(Resta the starting frequency
„
Mo erload e rning -- OL (Function code data = 7)
This o t signal is ssu nables you to t ke an
correc action bef inverter and shuts down its
outpu to the on o
„
Inverter ready to run -- RDY (Function code data = 10)
es ready to run by completing hardware
frequency arrival delay time (E29) has elapsed. (Refer to the
rative control), or overload stop (hit mechanical
shifts the output frequency. When
IOL si s ON, it may mean that the o
frequency
ay h
dev
limiting om the
ction.
ency specified by the se of
ter mo ry power failure --
ON eit uring continuous running after
cted an underv
failure
the m whe
til rest
inverter has dete
s been complete
and sh
efer
ncy).
able thi gnal, s (Restart m "4: Enabl
t (Re e frequ at which the power
.
ble rest
rt at )" beforehand
tor ov arly wa
utpu used to i e a motor overload early warning that e
detects a motor overload alarm
0l1
a
tive
t. (Refer
ore the
descripti f E34.)
This output signal comes ON when the inverter becom
preparation (such as initial charging of DC link bus capacitors and initialization of the control
circuit) and no protective functions are activated.
„
Frequency arrival signal 2 -- FAR2 (Function code data = 21)
This output signal comes ON when a difference between the output frequency before the
torque limiting and the reference frequency comes to within the frequency arrival hysteresis
width (E30) and then the
descriptions of E29 and E30.)
„
Inverter output limiting with delay -- IOL2 (Function code data = 22)
If the inverter enters any output limiting operation such as output torque limiting, output current
limiting, automatic deceleration (anti-regene
stop), it automatically activates the stall-free facility and
such an output limiting operation continues for 20 ms or more, this output signal comes ON.
This signal is used for lessening the load or alerting the user to an overload status with the
monitor.