IAI Rcon, Instruction Manual, Page: 619 / 838

2.4 Driver Unit/Simple Absolute Unit Alarm Causes and Countermeasures
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Causes and countermeasures of individual alarms
If corresponding driver units are limited, a symbol for the type of the corresponding driver unit is
indicated in the alarm code column. Alarm codes with no symbols indicated are common to all
driver units.
P: Stepper motor RCP2, RCP3, RCP4, RCP5, and RCP6 Series
A: 24V AC Servo motor RCA, RCA2, and RCL Series
D: DC brush-less motor RCD Series
S: 200V AC Servo motor RCS and ISB Series etc.
(1) Message level
Alarm
code
Alarm name Causes/countermeasures
047
P, A, D
Driver
limited
Deviation exceeded
warning
Cause: Present operating conditions or high actuator sliding resistance
may be causing excess deviation.
Countermeasure: Lower the acceleration/deceleration setting.
Perform maintenance such as greasing, etc.
048 Driver overload warning Cause: The load current value exceeds the setting of Parameter No.
143 "Overload Load Level Ratio".
This alarm retains alarm status until it is reset.
This alarm turns ON when the load current value exceeds the setting.
Countermeasure: Lower the acceleration/deceleration setting. Or
increase the pause ratio.
049
P
Driver
limited
Collision warning Cause: The current value of the motor reached the detection current
value set by the collision detection function.
Countermeasure: Remove the cause of the collision.
For an unexpected detection, readjust the collision
detection function. [Refer to Startup Section Chapter
6, 6.2 Various Functions/Collision detection function
(page B6-72)]
04A Estimated life exceeded
warning
Cause: Driver unit motor power capacitor power capacitance has
decreased by 20%.
Countermeasure: Replace the driver unit as soon as possible.
04C Low fan rotation speed Cause: Fan rotation speed of fan unit mounted on driver unit has
decreased 30%.
Countermeasure: Replace the fan unit as soon as possible.
Refer to "Specifications Section Chapter 4, 4.4 Part
Names/Functions and External Dimensions [How to
replace Fan unit]" for how to make replacement.
04D Fan total running time
exceeded
Cause: Fan total running time has exceeded the replacement guidelines.
Countermeasure: The alarm can be canceled without replacing the fan
unit, but we recommend replacing the fan unit
before it breaks down as an aspect of preventive
maintenance.
Refer to "Specifications Section Chapter 4, 4.4 Part
Names/Functions and External Dimensions [How to
replace Fan unit]" for how to make replacement.
04E Travel count target value
exceeded
Cause: The total travel count set by Parameter No.147 "Total Travel
Count Target Value" has been exceeded.
04F Travel distance target
value exceeded
Cause: The total travel distance set by Parameter No.148 "Total Travel
Distance Target Value" has been exceeded.