6-3 Troubleshooting
6-3-1 Error Diagnosis using the Alarm Indicators
6-3 Troubleshooting
If an error occurs in the machinery, determine the error conditions from the alarm indicators and
operating status, identify the cause of the error, and take appropriate countermeasures.
6-3-1
Error Diagnosis using the Alarm Indicators
LED
Indicators
Error
Status when error
occurs
Cause of error
Countermeasure
Occurs when the
power is turned ON.
The Servo Driver is faulty.
Replace the Servo Driver.
The U phase, V phase, W phase, or
GR wires are wired incorrectly.
The encoder wires are wired
incorrectly.
Rewire correctly.
Noise infiltrated the Encoder Cable
and caused improper operation.
Take countermeasures against
noise in the Encoder Cable.
Occurs when the servo
is turned ON.
The Servo Driver is faulty.
Replace the Servo Driver.
The U phase, V phase, W phase, or
GR wires are wired incorrectly.
The encoder wires are wired
incorrectly.
Rewire correctly.
Noise infiltrated the Encoder Cable
and caused improper operation.
Take countermeasures against
noise in the Encoder Cable.
The position command input
exceeds a rate of 4,500 rpm.
Input the command value
correctly.
AL1
AL2
AL3
Speed
error
Occurs when the
Servomotor starts
running or after
initiating high-speed
rotation.
The Servo Driver is faulty.
Replace the Servo Driver.
Occurs when the
power is turned ON.
The Servo Driver is faulty.
Replace the Servo Driver.
The U phase, V phase, W phase, or
GR wires are wired incorrectly.
The encoder wires are wired
incorrectly.
Rewire correctly.
Occurs when the servo
is turned ON.
The Servo Driver is faulty.
Replace the Servo Driver.
The U phase, V phase, W phase, or
GR wires are wired incorrectly.
The encoder wires are wired
incorrectly.
Rewire correctly.
The Servomotor shaft is locked.
Check the load status and
re-evaluate the Servomotor
capacity.
Servomotor will not
rotate even though
command pulses are
being input.
The Servo Driver is faulty.
Replace the Servo Driver.
Operation continued with an
effective torque exceeding the rated
torque, within the electronic thermal
function’s operation range.
Re-evaluate the load conditions
and conditions, or re-evaluate the
Servomotor capacity.
Power supply voltage dropped.
Keep the power supply voltage
within the allowed range.
AL1
AL2
AL3
Overload
Occurs during normal
operation.
Servomotor winding is burned out.
Measure the winding resistance
and replace the Servomotor if the
winding is burned out.
Lit:
Not lit:
Flashing:
6-5
Summary of Contents for SMARTSTEP Junior R7D-ZP
Page 3: ...2 ...
Page 18: ...Section 1 Configuration Features and System ...
Page 25: ...1 5 Applicable Standards 1 5 2 UL and cUL Standards 1 8 ...
Page 26: ...Section 2 Dimensions Standard Models and ...
Page 36: ...Section 3 Specifications ...
Page 62: ...Section 4 System Design ...
Page 86: ...Section 5 Operation ...
Page 96: ...Section 6 Troubleshooting ...
Page 109: ...6 5 Periodic Maintenance 6 5 3 Replacing the Cooling Fan 6 14 ...
Page 110: ...Appendix ...