Mitsubishi Electric MELSEC-LD77MS2 User Manual page 904

Classification Error
Error name
of errors code
ABS reference point
212
read error
Encoder ABS data not
230
established
Home Z-phase passing
231
position parameter invalid
return (OPR)
232 OPR method invalid
233 Driver OPR error
OPR mode timeout
234
error
OPR operation timeout
235
error
OPR finish timeout
236
error
Outside JOG speed
300
range
JOG
operation or
inching
operation
Inching movement
301
errors
amount error
Positioning
Illegal condition data
operation 500
No.
errors
Error
• The data is not loaded from the servo
amplifier properly upon the OPR.
• The in-position signal is not turned ON
within 1.5 seconds after moving an axis to
the OP.
OPR is started on the direct drive motor
when the absolute position data of the
encoder has not been established.
Servo parameter "Function selection C-4
(PC17)" is not set to "0: Need to pass servo
motor Z-phase after power on" in the
machine OPR of scale origin signal
detection method.
OPR is started with the OPR method which
is not supported by the connected device.
A driver alarm was detected during OPR
for the stepping motor driver.
The data is not loaded from the stepping
motor driver properly upon the OPR.
At the time of JOG starting, the JOG speed
comes out of a specified range.
The inching movement amount dose not
satisfy the setting conditions. (The setting
value is large.)
Setting condition:
"Inching movement amount × (A) ≤ JOG
speed limit value"
Use the following values for (A).
Operation cycle
0.88
When unit is set to PLS 1125
When unit is set to degree
and "
Pr.83 Speed control 10
67.5
x multiplier setting for degree
" is valid
axis
When unit setting is other
675
than the above
The condition data No. is outside the
setting range when a block using the
condition data is started by a special
starting (conditional start, wait start,
simultaneous start, FOR (condition)).
(1 Condition data No. 10)
16 - 20
Chapter 16 Troubleshooting
Operation status at error occurrence
The OPR does not complete.
The OPR does not start.
The OPR does not start.
The OPR does not start.
The OPR completes at the error occurrence
position.
The JOG operation is not carried out when
the JOG speed is outside the setting range at
the time of JOG start.
Unit [ms]
The inching operation is not carried out when
the inching movement amount exceeds a
1.77
JOG speed limit at the time of inching start.
562.5
33.75
337.5
The operation is terminated.