Okuma Alarm-A 1135 MCS DD encoder link error
An error occurred in the encoder communication link.
Object
Axis name or none (spindle)
Character-string
None
Code
XXYYZZZZ
XX = $FF (fixed)
YY = $00: Error is detected at the DD encoder.
$01: Error is detected at the DD encoder (slave sensor).
ZZZZ = Encoder link error status at the time of error detection
bit15: Undefined
bit14: Undefined
bit13: Error in communication with the DD encoder (slave sensor)
bit12: Error in communication with the DD encoder
bit11: MT buffer error
bit10: Transmission loop error in AT mode
bit9 : Data over error in data receiving part of interface
bit8 : Undefined
bit7 : Undefined
bit6 : Modulation code error
bit5 : CRC error
bit4 : Format error
bit3 : Double transmission error
bit2 : Double reception error
bit1 : Parity error
bit0 : Time-out error
bit14: Undefined
bit13: Error in communication with the DD encoder (slave sensor)
bit12: Error in communication with the DD encoder
bit11: MT buffer error
bit10: Transmission loop error in AT mode
bit9 : Data over error in data receiving part of interface
bit8 : Undefined
bit7 : Undefined
bit6 : Modulation code error
bit5 : CRC error
bit4 : Format error
bit3 : Double transmission error
bit2 : Double reception error
bit1 : Parity error
bit0 : Time-out error
This alarm occurs only at ICB-H.
Probable Faulty Locations
DD encoder of DD encoder (slave sensor) of the pertinent axis
Encoder link cables or connectors
Inverter unit control board