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8 Applied Settings
High-function General-purpose Inverter RX2 Series User’s Manual
8-6 Alarm Signal
8
8-6-4 Overload Warning Function (OL/OL2)
The overload warning function can be set so that the inverter outputs an overload warning if the load is
too large, before it causes an overload trip.
Assign the output terminal functions 035 [OL] and 036 [OL2] overload prewarning signal to one of
[CC-01] to [CC-07] that corresponds to the output terminal and output the signal.
The overload prewarning signals [OL] and [OL2] will be output when the output currents exceed the
corresponding overload prewarning level.
You can output the signal in accordance with the operating state by changing the overload prewarning
signal output mode selection [CE105].
This function is effective, especially for conveyors, to prevent machine failure that may occur when the
load increases because an excessive number of packages are loaded, or to prevent carrier lines from
stopping because of an overload error of the inverter.
Precautions for Correct Use
• An overcurrent error may occur before the signal is output when the overload prewarning
level has been set to an excessively high value. In this case, reduce the overload prewarning
level.
• Small fluctuations in the frequency input may hinder the speed from being determined as
constant when an analog input is used as the frequency command. In this case, change the
overload prewarning signal output mode selection [CE105] to 00 (valid in operation).
1 0 0 0 E008,E011
Memory element error,
CPU error
--
1 0 0 1 E010 Detector error - -
1010
E012,E013,
E035,E036
External error, USP error,
thermistor error, break
fault
--
1 0 1 1 E014 Ground fault protection - -
1100
E040,E041,
E042,E043,
E044,E045
Keypad communication
error, RS485 communica-
tion error, RTC error,
EzSQ executive instruc-
tion error, overflow error,
illegal instruction error
--
1 1 0 1 E020,E021
Abnormal temperature
error caused by reduced
rotation speed of the cool-
ing fan, abnormal tem-
perature error
--
1 1 1 0 E024,E034
Input open-phase error,
output open-phase error
--
1111
Other than
above
EzSQ assignment error 0
to 9, etc.
--
8-6-4 Overload Warning Function (OL/OL2)
Output terminal function
When a 4-bit code is selected
(with [AC3])
When a 3-bit code is selected
(without [AC3])
AC3 AC2 AC1 AC0
Cause
code
Trip description
Cause
code
Trip description
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