Siemens SINUMERIK 840Di Diagnostic Manual page 820

Overview of Alarms
PLC alarms
400275 Direct keys 2 failed
Definitions: Direct keys 2: internal timeout has expired.
Reaction: Alarm display.
Remedy: Check connection to direct key module
Program Internal
Continuation:
400276 Pointer parameter direct keys 1 incorrect
Definitions: Pointer incorrectly defined
Reaction: Alarm display.
Remedy: Correct the pointer
Program Switch control OFF - ON.
Continuation:
400277 Pointer parameter direct keys 2 incorrect
Definitions: Pointer incorrectly defined
Reaction: Alarm display.
Remedy: Correct the pointer
Program Switch control OFF - ON.
Continuation:
400551 Fault on MPI/DP bus
Definitions: Error detected on I/O bus
Reaction: Alarm display.
Remedy: Check I/Os, rectify I/O fault
Program Internal
Continuation:
400552 Fault on DP bus
Definitions: Error detected on I/O bus
Reaction: Alarm display.
Remedy: Check I/Os, rectify I/O fault
Program Internal
Continuation:
400553 Fault on PROFINET bus
Definitions: Error detected on I/O bus
Reaction: Alarm display.
Remedy: Check I/Os, rectify I/O fault
Program Internal
Continuation:
400601 Configuration loading points incorrect
Definitions: The PLC configuration in the DB4 does not match the NC configuration
Reaction: Alarm display.
Remedy: Correct tool management start-up
Program Switch control OFF - ON.
Continuation:
2-820
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006