Omron TJ2-MC02 Hardware Reference Manual page 290

Hardware reference
Alarm Error detection function
number
Main Sub
92 0 Encoder data recovery
error protection
1 External scale data recov-
ery error protection
93 2 Parameter setting error
protection 2
HARDWARE REFERENCE MANUAL
Detection details and probable cause
Initialization of internal position information was unsuc-
cessful under semi-closed control in the absolute
mode.
Initialization of internal position information was unsuc-
cessful under full-closed control in the absolute mode.
External scale ratio has exceeded the permissible
range.
Countermeasure
• Check if the power supply voltage of encoder is
5VDC±5% (4.75 to 5.25V). Take special care
when the encoder cable is long.
• Separate motor cables from encoder cables if they
are tied together.
• Connect a shielded wire to FG.
• Check if the power supply voltage of encoder is
5VDC±5% (4.75 to 5.25V). Take special care
when the encoder cable is long.
• Separate motor cables from external scale con-
nection cables if they are tied together.
• Connect a shielded wire to FG. Refer to the exter-
nal scale connection diagram.
• Check the parameter set value.
Use the external scale ratio within the range of 1/40 to
160 times.
Attribute
History Can be Immediate
cleared stop
√ − −
√ − −
√ − −
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