Troubleshooting   Linear Actuators

Power Cylinder Eco Series CDS Type

1 The start button does not work.
2 The motor produces sounds but does not work.
3 The rated thrust cannot be attained.
4 Motor overheat
5 Unit damage
6 The magnetic sensor will not output

Power Cylinder Eco Series Servo Type

※ If your servo amplifier issues an alarm, refer to the instruction manual of your servomotor/servo amplifier to troubleshoot the problem.

7 The start button does not work.
8 The motor produces sounds but does not work.
9 Uncontrollable
10 Hunting
11 The rated thrust cannot be attained.
12 Motor overheat
13 Unit damage
14 The magnetic sensor will not output
 Answers
1 The start button does not work.
Cause 1 Incorrect connection of the motor/controller Action Check the wiring.
Cause 2 Disconnection of the motor stator winding or lead wire Action Repair or replacement
Cause 3 Failure of the electromagnetic switch/controller Action Repair
Cause 4 Large inertia load Action Redesign of the equipment
Cause 5 Damage to the electronic component of the built-in controller Action Repair
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2 The motor produces sounds but does not work.
Cause 1 Single-phase operation Action Check the wiring.
Cause 2 Power supply voltage drop Action Increase the power supply capacity. Review the power supply size.
Cause 3 Excessive stroke of the brake electromagnet Action Replacement
Cause 4 Seized brake lining Action Replacement
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3 The rated thrust cannot be attained.
Cause 1 Power supply voltage drop Action Increase the power supply capacity. Review the power supply size.
Cause 2 Improper connection with the connected equipment Action Repair
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4 Motor overheat
Cause 1 Overload Action Reduce the load. Review the capacity.
Cause 2 Excessive use frequency Action Review the capacity.
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5 Unit damage
Cause 1 Impact load Action Repair
Cause 2 Side load Action Repair
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6 The magnetic sensor will not output
Cause 1 Incorrect wiring Action Connect the wiring again. Replace the sensor.
Cause 2 Overvoltage Action Correct to the proper power supply. Replace the sensor.
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7 The start button does not work.
Cause 1 Incorrect connection of the servomotor/servo amplifier Action Check the wiring.
Cause 2 Servo amplifier alarm Action Check the alarm details. Troubleshoot the problem.
Cause 3 Failure of the servomotor/servo amplifier Action Repair or replacement
Cause 4 Overload or large inertia load Action Redesign of the equipment
Cause 5 Input signals from the servo amplifier Action Check the input signals.
Cause 6 Parameter setting Action Check the parameter setting values.

For details about an item marked with *, refer to the instruction manual of your servomotor/servo amplifier.

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8 The motor produces sounds but does not work.
Cause 1 Damage to the electromagnetic brake Action Replacement
Cause 2 Improper power supply for the electromagnetic brake Action Check the brake power supply.
Cause 3 Coupling slip Action Check the tightening of the clamp bolt.
Cause 4 Input signals from the servo amplifier Action Check the input signals.
Cause 5 Parameter setting Action Check the parameter setting values.

For details about an item marked with *, refer to the instruction manual of your servomotor/servo amplifier.

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9 Uncontrollable
Cause 1 Incorrect connection of the servomotor/servo amplifier Action Check the wiring.
Cause 2 Disconnection or improper wiring of the encoder cable Action Check the wiring.

For details about an item marked with *, refer to the instruction manual of your servomotor/servo amplifier.

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10 Hunting
Cause 1 Incorrect connection of the servomotor/servo amplifier Action Check the wiring.
Cause 2 Parameter gain setting Action Check the parameter setting values.

For details about an item marked with *, refer to the instruction manual of your servomotor/servo amplifier.

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11 The rated thrust cannot be attained.
Cause 1 Coupling slip Action Tighten the clamp bolt.
Cause 2 Improper connection with the connected equipment Action Repair
Cause 3 Damage to the electromagnetic brake Action Replacement
Cause 4 Improper power supply for the electromagnetic brake Action Check the brake power supply.
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12 Motor overheat
Cause 1 Overload Action Reduce the load. Review the capacity.
Cause 2 Excessive use frequency Action Review the capacity.
Cause 3 Damage to the electromagnetic brake Action Replacement
Cause 4 Improper power supply for the electromagnetic brake Action Check the brake power supply.
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13 Unit damage
Cause 1 Impact load Action Repair
Cause 2 Side load Action Repair
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14 The magnetic sensor will not output
Cause 1 Incorrect wiring Action Connect the wiring again. Replace the sensor.
Cause 2 Overvoltage Action Correct to the proper power supply. Replace the sensor.
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