13 Diagnostics
13.2 Check Error Code
277
FX3U-20SSC-H Positioning Block User's Manual
11
Buffer Memory
12
Program
Example
13
Diagnostics
A
List of
Parameters and
Data
B
Version
Information
2. Content of warning and action
*1. This warning is not displayed on MR-J3-70B/100B servo amplifiers with cooling fans.
20SSC-H
warning
code
Servo
amplifier
LED
indication
Content Action
2095 95
STO warning (Only the MR-J3- BS)
STO I/O signal turns off.
• Properly connect the STO I/O signal connector.
• Change the STO cable.
• Change MR-J3-D05.
• Change the external device, or review the setting.
2102 92
Open battery cable warning
The absolute position detection system battery
voltage is low.
Replace the servo amplifier battery.
2106 96
Home position setting warning
The zero return could not be set to the accurate
position.
• Remove the cause of drop pulses.
• Reduce the creep speed.
2116 9F
Battery warning
The voltage of the battery for the absolute position
detection system is low.
Replace the servo amplifier battery.
2140 E0
Excessive regenerative warning
There is a possibility that regenerative power may
exceed the permissible regenerative power of the
built-in regenerative brake resistor or the
regenerative brake option.
• Reduce the frequency of positioning.
• Change the regenerative brake option to the one with a
larger capacity.
• Reduce the load.
2141 E1
Overload warning
There is a possibility that overload (error code:
2050) or overload (error code: 2051) may occur.
Refer to the manual of the servo amplifier.
2143 E3
Absolute position counter warning
Absolute position encoder pulses are faulty.
• To reduce the noise, follow the servo amplifier manual.
• Replace the servo motor.
2144 E4
Parameter warning
Parameters are outside the setting range.
Set the servo parameters correctly.
2146 E6
Servo forced stop warning
Servo amplifier input signal EM1 is OFF.
Ensure safety and deactivate the forced stop.
2147 E7 A watchdog error occurred on the 20SSC-H.
If this error occurs after rebooting and initializing the
20SSC-H, the module needs repair.
Consult your local Mitsubishi Electric representative.
2148 E8
Cooling fan speed reduction warning
The rotation speed of the servo amplifier's cooling
fan fell below the warning level.
*1
• Replace the cooling fan of the servo amplifier.
• Replace the servo amplifier.
2149 E9
Main circuit OFF warning
The servo ON signal turned ON with the main
circuit power OFF.
Turn the main circuit power ON.
2152 EC
Overload warning 2
Operation in which a current exceeding the rating
flow intensity in any of the U, V or W phases of the
servo motor, is repeated.
• Reduce the positioning frequency at the specific
positioning address.
• Reduce the load.
• Exchange the servo amplifier/servo motor with one of a
larger capacity.
2153 ED
Output watt excess warning
The status in which the output wattage (speed ×
torque) of the servo motor exceeds the rated
output.
• Reduce the rotation speed of the servo motor.
• Reduce the load.
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