5.4 Details of Function Codes
5-203
Details of
Function Codes
F codes
E codes
C codes
P codes
H78 to H82
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Chapter 5 Function Code
H81, H82
Light Alarm Selection 1 and 2
If the inverter detects a minor abnormal state, it can continue the current operation without tripping while
displaying the "light alarm" indication
l-al
on the LED monitor. In addition to the indication
l-al
, the
inverter blinks the KEYPAD CONTROL LED. Function codes H81 and H82 specify which alarms should be
categorized as "light alarm."
The table below lists alarms selectable as "light alarm."
Table 5.4-137
Code Name Overview
0h1
Cooling fin overheat Cooling fin temperature increased to the trip level.
0h2
External alarm
An error occurs in peripheral equipment, and external
alarm THR signal turns on.
0h3
Inverter internal overheat
The temperature inside the inverter abnormally has
increased.
dbh
Braking resistor overheat
Estimated temperature of the coil in the braking resistor
exceeded the allowable level.
0l1
to
0l4
Overload of motor 1 through 4
Motor temperature calculated with the inverter output
current reached the trip level.
er4
Option communications error (detection)
Communications error between the inverter and an
option.
er5
Option error An option judged that an error occurred.
er8
erp
RS-485 communication error
(Communication port 1, 2)
RS-485 communications error between the COM ports 1 and
2.
ere
Speed mismatch or excessive speed
deviation
The deviation of the speed controller (speed command
and detected speed) is out of the set range (d21) for a
period longer than the set time (d22).
cof
PID feedback wire break detection The PID feedback signal wire is broken.
fal
DC fan lock detection
Failure of the air circulation DC fan inside the inverter.
(200 V class: 45 kW or above. 400 V class: 75 kW or
above.)
0l
Motor overload early warning Early warning before a motor overload alarm output
0h
Cooling fin overheat warning Early warning before a cooling fin overheat trip
lif
Lifetime warning
It was judged that the service life of either one of main
circuit capacitor, electrolytic capacitor of printed board,
and cooling fan has expired.
Or, failure of the air circulation DC fan inside the
inverter. (200 V class: 45 kW or above. 400 V class: 75
kW or above.)
ref
Command loss Analog frequency command was broken.
pid
PID alarm output
Warning related to PID control (absolute-value alarm or
deviation alarm)
uTl
Low torque detection
Output torque drops below the low torque detection
level for the specified period.
pTc
Thermistor detection (PTC)
The PTC thermistor on the motor detected a
temperature.
rTe
Machinery life (Motor cumulative run
time)
The motor cumulative run time reached the
maintenance time set by the motor cumulative run time.
cnT
Machinery life (Number of startups) Number of startups reached the specified level.
ero
Positioning deviation over
When the second bit of H82 is set to 1, the excessive
position deviation in simultaneous operation is set to an
objective of light alarm.
For details of the position deviation over, see the PG
interface card instruction manual.
Note: The excessive position deviation in the servo lock
cannot be set to light alarm object.
Set data for selecting "light alarms" in hexadecimal. For details on how to select the codes, see the next
page.
- Data setting range: 0000 to FFFF (in Hex.)
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