Mitsubishi FX3U-20SSC-H User Manual page 281

FX -20SSC-H Positioning Block User's Manual
3U
Error
Error category Code
(decimal)
Error code, error content and action are given for the MR-J3- B(S).
Parentheses ( ) in the error code column indicate the LED display of the MR-J3- B(S).
→For details on how to check errors and actions, refer to the manual of the servo amplifier to be connected
2047
2050
Servo amplifier
2051
2052
Error Content
Cooling fan alarm
• The cooling fan of the servo amplifier
stopped.
(47)
• The rotation speed of the fan fell below the alarm
level.
Overload 1
The load exceeded
characteristics of the servo amplifier.
(50)
Overload 2
• A machine collision or other similar factor has
caused the max.
continuously for several seconds.
Servo motor
- Locked :1s or more
- During rotation :2.5s or more
(51)
Excessive error
The deviation between the model position and the
actual servo motor position exceeds the excessive
error alarm level (servo parameter) setting value
(default: 3 rotations).
→Refer to Subsection 11.2.3
(52)
→For the MR-J3W- B, refer to the MR-J3W- B Instruction Manual
• Replace the cooling fan of the servo amplifier.
• Remove any debris
• Replace the servo amplifier.
• The servo amplifier is exceeding its continuous
the overload protection output current rating.
-
-
-
• Machine collision occurred.
-
-
• Connect the servo motor correctly.
• Servo system is unstable due to servo hunting
(jittering).
-
-
-
• Replace the servo motor.
• Machine collision occurred.
-
output current to flow -
• Connect the servo motor correctly.
• Hunting is occurring due to an unstable servo
system.
-
-
-
• Replace the servo motor.
• Increase the acceleration/deceleration time
constant.
• Increase the torque limit value.
• The motor cannot be started due to insufficient
torque caused by a power supply voltage drop.
-
-
• Increase the value of model control gain (servo
parameter) and adjust to ensure proper operation.
• The servo motor shaft was rotated by an external
force.
-
-
-
• Machine collision occurred.
-
-
• Replace the servo motor.
• Connect the servo motor correctly.
• Replace the SSCNET III cable.
13 Diagnostics
13.2 Check Error Code
Action
Reduce the load.
Review the operation pattern.
Use a servo motor that provides larger output.
Review the operation pattern.
Install limit switches.
Repeat acceleration/deceleration to execute
auto tuning.
Change the auto tuning response setting
(servo parameter).
→Refer to Subsection 11.2.1
Set the auto tuning mode (servo parameter) to
OFF and manually adjust the the gain.
→Refer to Subsection 11.2.1
Review the operation pattern.
Install limit switches.
Repeat acceleration/deceleration to execute
auto tuning.
Change the auto tuning response setting
(servo parameter).
→Refer to Subsection 11.2.1
Set the auto tuning mode (servo parameter) to
OFF and manually adjust the gain.
→Refer to Subsection 11.2.1
Review the power supply capacity.
Use a servo motor with larger output.
→Refer to Subsection 11.2.2
When the torque is limited, increase the limit
value.
Reduce the load.
Use a servo motor with larger output.
Review the operation pattern.
Install limit switches.
11
12
13
A
B
275