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APP - 5
A
PPENDICES
APPENDIX 1.4 Differences of error codes
Table 1.5 Differences of error codes
Error code Q170MCPU QnUD(E)(H)CPU
PLC CPU
area
Self-diagnosis error
code
2124
• A module is mounted on the settable slot
or later slot.
• A module is mounted on the slot whose
number is greater than the number of slots
specified at [Slots] in [Standard setting] of
the base setting.
• A module is mounted on the slot whose
number of I/O points exceeds 512 points.
• A module is mounted on the slot whose
number of I/O points strides 512 points.
• A module is mounted on the 65th slot or
later slot.
• A module is mounted on the slot whose
number is greater than the number of slots
specified at [Slots] in [Standard setting] of
the base setting.
• A module is mounted on the slot whose
number of I/O points exceeds 4096 points.
• A module is mounted on the slot whose
number of I/O points strides 4096 points.
Error code Q170MCPU Q173DCPU/Q172DCPU
Motion SFC
parameter error
17004 Event task operation cycle setting error —
Servo program
setting error
51 Rapid stop deceleration time setting error —
Motion CPU
area
Minor error 122
Home position return is started on the direct
drive motor when the absolute position data
of the encoder has not been established.
—
The error details of Q170MCPU are shown below.
(1) Self-diagnosis error code (Error code: 2124)
LED display
Error code
(SD0)
Error message
Common
information
(SD5 to SD15)
Individual
information
(SD16 to SD26)
RUN ERR.
CPU operation
status
Diagnostic timing
2124 SP. UNIT LAY ERR. — — OFF Flicker Stop At power ON/At reset
Error contents and cause Corrective action
• A module is mounted on the settable slot or later slot.
• A module is mounted on the slot whose number is greater
than the number of slots specified at [Slots] in [Standard
setting] of the base setting.
• A module is mounted on the slot whose number of I/O
points exceeds 512 points.
• A module is mounted on the slot whose number of I/O
points strides 512 points.
• Remove the module mounted on the settable slot or later slot.
• Remove the module mounted on the slot whose number is
greater than the number of slots specified at [Slots] in
[Standard setting] of the base setting.
• Remove the module mounted on the slot whose number of
I/O points exceeds 512 points.
• Replace the module with the one whose number of occupied
points does not exceed 512 points.
(2) Motion SFC parameter error (Error code: 17004)
Error code Name Description Error processing Corrective action
17004
Event task operation
cycle setting error
The operation cycle setting
value is outside the setting
range.
The specified Motion SFC
program does not start.
Turn PLC ready flag (M2000) OFF, set
the operation cycle setting to 0.4[ms] or
more, or default value.