97
1
S
PECIFI
C
A
T
IONS
SPECIFICATIONS
1.5.2
List of fault or alarm display
( common)
(1) Fault
common
common
Name
Description
Indication
Available Inverters
Operation
panel
Parameter unit
FR-PU04 FR-PU07
O
ver
current
shut
-o
ff
During
acceleration
When the inverter output current reaches or
exceeds specific value (approximately
220% of the rated current for
, 170%
for
, 230% for
, 200% for
)
of the rated current during acceleration/
deceleration or constant speed operation
(when the output frequency is within
2Hz
range of the set frequency), the protective
circuit is activated to stop the inverter
output.
(E.OC1)
OC During Acc
{
{
{
{
Constant
speed
(E.OC2)
Stedy Spd OC
{
{
{
{
During
deceleration
or stop
(E.OC3)
OC During Dec
{
{
{
{
Regen
erat
ive
overv
o
ltage shut
-of
f
During
acceleration
If regenerative energy causes the inverter's
internal main circuit DC voltage to reach or
exceed the specific value, the protective
circuit is activated to stop the inverter
output. The circuit may also be activated by
a surge voltage produced in the power
supply system.
Definition of constant speed is when the
output frequency is within
2Hz of the set
frequency.
(E.OV1)
OV During Acc
{
{
{
{
Constant
speed
(E.OV2)
Stedy Spd OV
{
{
{
{
During
deceleration
or stop
(E.OV3)
OV During Dec
{
{
{
{
O
ver
load
shut
-of
f
(elect
ronic t
herm
a
l relay
f
u
nct
ion)
Inverter
If a current of 150% or larger (120% for
) of the rated output current flows and
overcurrent trip does not occur in
, the electronic thermal relay
activates to stop the inverter output in order
to protect the output transistors. (Overload
capacity 150% (
is 120%) 60s)
Resetting the inverter initializes the internal
thermal integrated data.
For
, if the temperature of the
output transistor element exceeds the
protection level under the condition that a
current not less than the rated inverter
current flows and overcurrent trip does not
occur (200% or less), the electronic thermal
relay activates to stop the inverter output.
(Overload capacity 150% 60s, 200% 0.5s)
(E.THT)
Inv. Overload
{
{
{
{
Motor
The electronic thermal relay function built in
the inverter detects motor overheat due to
overload or reduced cooling capability
during constant-speed operation. If the
internal thermal integrated data reaches
100% of the value set in [
Pr. 9 Electronic
thermal O/L relay
], the protective circuit is
activated to stop the inverter output. When
running a special motor such as a multi-pole
motor or multiple motors, provide a thermal
relay on the inverter output side since such
motor(s) cannot be protected by the
electronic thermal relay function.
Resetting the inverter initializes the internal
thermal integrated data.
(E.THM)
Motor Ovrload
{
{
{
{
A700
F700
E700
D700
A700
F700
E700
D700
F700
A700 F700
F700
E700 D700
Summary of Contents for FR-A700 Series
Page 245: ...279 2 PARAMETER PARAMETER MEMO ...
Page 440: ...474 PARAMETER MEMO ...
Page 522: ...556 SELECTION MEMO ...
