Data Alteration From External Not Possible In Current Channel State; Runtime Overflow For Ipo Cycle Or Position Controller Cycle, Ip %1; Machine Data %1 Assigns Not Activated Nck Input/Output Byte %2 - Siemens Sinamics S120 Diagnostic Manual

NCK alarms
4230 [Channel %1: ] Data alteration from external not possible in current channel state
Parameters: %1 = Channel number
Definitions: It is not allowed to enter this data while the part program is being executed (e.g. setting data for working area limitation
or for dry run feedrate).
Reaction: Alarm display.
Remedy: The data to be entered must be altered before starting the part program.
Program Clear alarm with the Delete key or NC START.
Continuation:
4240

Runtime overflow for IPO cycle or position controller cycle, IP %1

Parameters: %1 = Program location
Definitions: The settings for the interpolation and position control cycle were modified before the last power-up such that too little
computing time is now available for the requisite cyclic task.
The alarm occurs immediately after power-up if too little runtime is available even when the axes are stationary and
the NC program has not started. However, task overflow can occur only when computation-intensive NC functions are
called during program execution.
Reaction: NC not ready.
The NC switches to follow-up mode.
Mode group not ready, also effective for single axes.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Alarm reaction delay is cancelled.
Remedy: Please inform the authorized personnel/service department.
Take greater care when optimizing the clock times MD10050 $MN_SYSCLOCK_CYCLE_TIME, MD10060
$MN_POSCTRL_SYSCLOCK_TIME_RATIO and/or MD10070 $MN_IPO_SYSCLOCK_TIME_RATIO.
The test should be performed with an NC program that represents the highest possible control load. To be on the safe
side, a margin of 15 to 25% should be added to the times determined in this way.
Program Switch control OFF - ON.
Continuation:
4270

Machine data %1 assigns not activated NCK input/output byte %2

Parameters: %1 = String: MD identifier
%2 = Index
Definitions: The specified machine data assigns a digital input/output byte or an analog input/output signal the processing of which
has not been activated to an NC function.
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
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Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
Alarms