CHAPTER 7 MAINTENANCE AND INSPECTION
7-16
Items to be Inquired upon Trouble
7
7.4 Items to be Inquired upon Trouble
If an alarm is alerted due to any cause, take corrective actions according to description given in "7.3
Troubleshooting Method." If the servo amplifier is reset to continue operation though the cause is
unknown, damage may be caused to the servomotor and/or servo amplifier. When contacting us, notify
the following information.
Item Information to Be Provided
Description of
nameplate
Model of servomotor and that of servo amplifier
[Example] RYH201F5-VV2
Device
configuration
Host control unit, external regenerative resistor, etc.
[Example] External regenerative resistor (model: WSR-401)
Configuration of
mechanical system
Outline of configuration of mechanical system driven by motor
[Example] Spring feed, vertical, reduction ratio 1/2
Details of trouble
(1) Operation years, whether the equipment has functioned correctly even once
or not
(2) Frequency of alarm detection and control method (pulse operation, etc.) and
other circumstances
[Example] An alarm is displayed whenever a certain device functions.
(3) Description of alarm display
(4) Repeatability of alarm
(5) Timing of alarm occurrence - during acceleration, during rotation at constant
speed, during deceleration, ...
(6) Difference in alarm occurrence between forward and reverse rotation
(7) Whether the alarm occurs under certain circumstances or not
[Example] When the servo-on (S-ON) signal is turned on
[Example] When the table advances to reach a certain point
(8) Whether the similar phenomenon is observed or not if the servo amplifier is
replaced with another one used for a machine of the same specification
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