IAI Rec, Instruction Manual

Page: 149 / 158

Chapter
7 T
roubleshooting
7.3 Causes and countermeasures for ELECYLINDER alarms
ME0394-1A
7-7
[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
loads.
2 The ELECYLINDER may be being used under
conditions exceeding the specifications
described in the catalog.
Check the specification values such as payload,
acceleration/deceleration and speed, and adjust
them appropriately.
3 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.
4 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 for each
ELECYLINDER for the recommended tightening
torque of the bolt for fixing the base.
5 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).
6 As a cable size less than AWG18 is applied for
the power supply line, the resistance is too high.
Or, there is a contact error on the connection
terminal and the peak current would not flow.
Apply a cable with AWG18 for the power supply
line.
Also, check if there is a looseness, contact error
or line breakage on the connection terminals or
connectors.
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 setting"
enabled.
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
the power again.