FujiFilm ALPHA 5 RYT-SX, User Manual

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CHAPTER 7 MAINTENANCE AND INSPECTION
Troubleshooting Method
7-7
7
3. Control Power Undervoltage
[Display] [Description of detected alarm]
[Cause and remedy]
Cause Remedy
The source voltage drops due to
momentary power failure or similar.
Check the power supply environment for momentary
power failure and improve the power supply environment.
Check and improve the power supply capacity and
transformer capacity.
Poor power supply capacity of
transformer, etc.
Replace the transformer, etc.
DC input is under execution. Set PA2_68 (main power shutoff detection time) at 1000 [ms].
4. Overvoltage
[Display] [Description of detected alarm]
[Cause and remedy]
Cause Remedy
The source voltage is too high
(immediately after power-on).
Check if the source voltage is within the specification
limits.
Insert a reactor if there is a power factor improvement
capacitor.
Unconnected external braking
resistor or wrong wiring Connect the external braking resistor.
Correct the wiring of the external braking resistor.
Broken braking transistor Replace the servo amplifier.
The internal DC voltage can be checked in the monitor mode of the keypad.
[on_015]: Internal DC link voltage (max. value)
Approximately over 420 [V], overvoltage is detected.
5. Encoder Trouble
[Display] [Description of detected alarm]
[Cause and remedy]
Cause Remedy
Fault in data sent from encoder Use shielded cables to eliminate noise effects.
Failure of encoder Replace the servomotor.
The DC voltage inside the servo amplifier exceeds the upper limit.
There is a fault in the encoder built in the servomotor.
(Communications are normal.)
Et1: Single revolution position detection fault of encoder
Et2: Encoder memory data reading fault
The voltage of the control power supplied to the servo amplifier
temporarily drops below the minimum specification limit.