5-112
F codes
E codes
C codes
P codes
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Chap. 5 FUNCTION CODES
H81, H82 Light Alarm Selection 1 and 2
If the inverter detects a minor abnormal state "light alarm", 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 and outputs the "light alarm" signal
L-ALM to a digital output terminal to alert
the peripheral equipment to the occurrence of a light alarm. (To use the
L-ALM, it is necessary to assign the signal to
any of the digital output terminals by setting any of function codes E20 through E24 and E27 to "98.")
Select the desired items to be regarded as a light alarm from the following table.
Code Name Description
0h1
Heat sink overheat Heat sink temperature increased to the trip level.
0h2
External alarm
An error that has occurred in peripheral equipment turned
the external alarm signal
THR 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 Communications error between the inverter and an option.
er5
Option error An option judged that an error occurred.
er8
erp
RS-485 communications error
(COM port 1)
RS-485 communications error
(COM port 2)
RS-485 communications error between the COM ports 1
and 2.
ere
Speed mismatch or excessive speed
deviation
The deviation of the automatic speed regulator (between the
reference speed and the detected one) is out of the specified
range (d21) for the period specified by d22.
fal
DC fan locked
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
0h
Heat sink overheat early warning Early warning before a heat sink overheat trip
lif
Lifetime alarm
It is judged that the service life of any one of the capacitors
(DC link bus capacitors and electrolytic capacitors on the
printed circuit boards) 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
Reference command loss detected Analog frequency command was lost.
pid
PID alarm
Warning related to PID control (absolute-value alarm or
deviation alarm)
uTl
Low torque output
Output torque drops below the low torque detection level
for the specified period.
pTc
PTC thermistor activated The PTC thermistor on the motor detected a temperature.
rTe
Inverter life (Cumulative run time) The motor cumulative run time reached the specified level.
cnT
Inverter life (Number of startups) Number of startups reached the specified level.
Set data for selecting "light alarms" in hexadecimal. For details on how to select the codes, refer to the next page.
- Data setting range: 0000 to FFFF (Hexadecimal)
Selecting light alarm factors
To set and display the light alarm factors in hexadecimal format, each light alarm factor has been assigned to bits 0 to
15 as listed in Tables 5.1 and 5.2. Set the bit that corresponds to the desired light alarm factor to "1." Table 5.3 shows
the relationship between each of the light alarm factor assignments and the LED monitor display.
Table 5.4 gives the conversion table from 4-bit binary to hexadecimal.
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