Bit Name Function Cause Corrective action
5 One-rotation
counter error
The encoder detected a
one-rotation counter error.
Excess noise has oc-
curred.
Implement noise countermeasures.
If the error occurs even after the noise
countermeasures are implemented, re-
place the motor because the Servomotor
failed.
Failure due to vibra-
tion, shock, conden-
sation, foreign materi-
al, etc.
4
Encoder memo-
ry error
The encoder detected a
non-volatile memory error.
False detection due
to a data read error
caused by excess
noise
If the error occurs even after you cycle the
power supply, replace the motor because
the encoder failed.
Non-volatile memory
failure
3
Overspeed error The encoder detected the
overspeed.
External forces are
rotating the motor.
If external forces are rotating the motor
,
you should keep the external forces away.
Encoder failure and
false detection
If the problem persists, replace the motor
because the encoder is out of order.
2
Reserve
1 Absolute encod-
er multi-rotation
counter error
The encoder detected a
multi-rotation counter error.
A temporary error oc-
curred in the encoder
multi-rotation detec-
tion function due to vi-
bration, shock, or
condensation
Use the Unit as it is if this error ceased af-
ter you improved the operating environ-
ment.
If the error occurs again, replace the mo-
tor.
Encoder failure
0
Maintenance in-
formation
This is not used.
Status
Status summarizes error codes and displays them in bits.
Bit Description
15 to 4 Reserve
3 Shows the status of Motor overheat error
in error codes.
2
When any of the following error codes becomes 1, this bit will be 1.
• Counter code error
• Counter increment error
• Absolute position detection error
• One-rotation counter error
• Encoder memory error
• Overspeed error
• Absolute encoder multi-rotation counter error
1 to 0 Maintenance information
A-8-6
Gate3[i].Chan[0].Status (Internal Memory Error Detection)
Description Internal memory error detection
This register is read-only. Writing is disabled.
It can detect a memory error inside the Unit.
The errors are classified into the following two types.
Appendices
A-31
CK3M-series Programmable Multi-Axis Controller User's Manual Hardware (O036)
A-8 Software Reference of Encoder Input Unit
A
A-8-6 Gate3[i].Chan[0].Status (Internal Memory Error Detection)
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