2.5 Causes and countermeasures for ELECYLINDER alarms
C2-31
ME0384-4A
Chapter 2 Troubleshooting
[Alarm group A: Overload alarm]
Moving parts of ELECYLINDER stopped abnormally while moving to the target position.
No. Cause Countermeasure
1 Operation may not be possible due to contact with
or snagging on external obstacles.
Remove any external obstacles or other external
2 The ELECYLINDER may be being used under
conditions exceeding the specifications described
Check the specification values such as payload,
acceleration/deceleration and speed, and adjust
Causes may include foreign matter, brake failure or
motor failure.
Visually check for the depletion of grease on the
ball screw/guide inside the ELECYLINDER,
intrusion of foreign matter, etc.
If this is the case, clean the inside of the
ELECYLINDER and replenish the grease.
Remove the motor and check the sliding movement
of the ELECYLINDER body.
If there is no abnormality in the sliding motion,
there is a possibility of motor or brake failure.
Replacement of the motor is recommended.
The base may have been distorted when mounting
the ELECYLINDER, increasing the sliding
resistance of the guide.
The ELECYLINDER mounting surface should be a
machined surface or a plane with similar accuracy,
with flatness within 0.05mm/m.
Refer to the instruction manual of each
ELECYLINDER for the recommended tightening
torque of the bolt for fixing the base.
The peak power capacity of the 24V power supply
is less than 4.2A.
Use a power supply with peak current of 4.2 A or
higher (per axis).
As there is a contact error at the terminals on the
EC connection unit cable, the peak current would
Check if there is any looseness, contact error or
line breakage on the terminals or connectors of the
EC connection unit cable.
7 The deceleration distance was insufficient and the
calculation result of the arrival position exceeded
the operation range of the ELECYLINDER due to
the "next movement command" being issued too
soon during operation with "Smooth accel/decel
Adjust the timing of the "next movement command"
so that the command will be given after the first
movement is completed.
8 24V power was turned ON while the moving parts
of the ELECYLINDER were immobilized or
pressed against the mechanical stopper.
Resolve the state of immobilization.
If the unit is pressed against the mechanical
stopper, move it at least 5mm away, then turn on
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