Okuma Alarm-P 0874 MCS Servo link error
A communication error occurred in the servo link, disabling the servo unit from receiving commands from the NC.
Object
Axis name or none (spindle)
Character-string
None
Code
XXXXYYYY
XXXX= 0 (fixed)
YYYY= Bit number indicating the kind of communication error
(Servo link error status at the time of error detection)
bit 15 1: 2nd B-buffer error
bit 14 1: 2nd A-buffer error
bit 13 1: 1st B-buffer error
bit 12 1: 1st A-buffer error
bit 11 1: MT buffer error
bit 10 1: Relay processing error
bit 9 1: Data over error in data receiving part of interface
bit 8 1: Disconnection
bit 7 1: Address pointer error
bit 6 1: Modulation code error
bit 5 1: CRC error
bit 4 1: Format error
bit 3 1: Double transmission error
bit 2 1: Double reception error
bit 1 1: Parity error
bit 0 1: Time-out error
bit 15 1: 2nd B-buffer error
bit 14 1: 2nd A-buffer error
bit 13 1: 1st B-buffer error
bit 12 1: 1st A-buffer error
bit 11 1: MT buffer error
bit 10 1: Relay processing error
bit 9 1: Data over error in data receiving part of interface
bit 8 1: Disconnection
bit 7 1: Address pointer error
bit 6 1: Modulation code error
bit 5 1: CRC error
bit 4 1: Format error
bit 3 1: Double transmission error
bit 2 1: Double reception error
bit 1 1: Parity error
bit 0 1: Time-out error
Probable Faulty Locations
– Inverter unit control board
– Servo link cables or connectors
– FCP board