Mitsubishi Electric MELSERVO-JN Series Instruction Manual page 137

4. PARAMETERS
4.3.4 Drive recorder function
The drive recorder function records the state transition before and after the alarm occurrence for the
predetermined period of time by always monitoring the servo status. The recorded data can be confirmed on
the graph display screen by clicking the "drive recorder display" button on the alarm history display screen of
MR Configurator. After shifting to the graph display screen, the drive recorder function becomes invalid. The
recorded data can be displayed with the analog 3CH or digital 4CH as in the graph function of MR Configurator.
(1) Parameter setting
Select valid/invalid of the drive recorder function in parameter No. PC11.
Parameter No. PC11
POINT
Records the state transition when an alarm occurs. However, the previously
recorded data is discarded. If another alarm occurs while an alarm is occurring,
the state transition during that another alarm is not recorded.
The drive recorder does not operate in the following situation.
When the number of record times reaches 255.
When the number of write times to alarm history after power-on reaches 16.
The number of record times can be confirmed on the display (alarm mode).
(Refer to section 5.5.)
The drive recorder does not operate when the following alarms occur.
Undervoltage (10.1 or 10.3)
Memory error 1 (RAM) (12.
Memory error 2 (EEP-ROM) (15.
Encoder initial communication error 1 (16.
Board error (17.
Memory error 3 (Flash-ROM) (19.
Motor combination error (1A.
Software combination error (1C.
Encoder initial communication error 2 (1E.
Encoder initial communication error 3 (1F.
Parameter error (37.
Watchdog (888)
When the graph is displayed in MR Configurator, the drive recorder function
becomes invalid. To make the drive recorder function valid again, switch the
power off then on. Valid/invalid of drive recorder function can be confirmed on
the display (diagnostic mode). (Refer to section 5.4.)
0
Presence or absence of drive recorder selection
0 : Valid (drive recorder execution)
1 : Invalid (drive recorder stop)
MR Configurator is required to refer to the drive recorder.
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