CHAPTER 7 MAINTENANCE AND INSPECTION

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 Outline of configuration of mechanical system driven by motor

mechanical system [Example] Spring feed, vertical, reduction ratio 1/2

(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

7

[Example] An alarm is displayed whenever a certain device functions.

(3) Description of alarm display

(4) Repeatability of alarm

Details of trouble (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

7-16 Items to be Inquired upon Trouble