Reaction:
Alarm display.
Remedy:
The data to be entered must be altered before starting the part program.
Programm
continuation:
Clear alarm with the Delete key or NC START.
4240
Runtime overflow for IPO cycle or position controller cycle, IP %1
Parameters:
%1 = Program location
Explanation:
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 canceled.
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.
Programm
continuation:
Switch control OFF - ON.
4270
Machine data %1 assigns not activated NCK input/output byte %2
Parameters:
%1 = String: MD identifier
%2 = Index
Explanation:
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.
Remedy:
Please inform the authorized personnel/service department.
Correct machine data. Activate required inputs/outputs via MDs:
MD10350 $MN_FASTIO_DIG_NUM_INPUTS
MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS
MD10300 $MN_FASTIO_ANA_NUM_INPUTS
MD10310 $MN_FASTIO_ANA_NUM_OUTPUTS
Activation of fast inputs/outputs does not require the corresponding hardware configuration to be available at the control.
All functions using fast inputs/outputs can also be made use of by the PLC specification/modification defined in the VDI
interface, if the response time requirements are reduced accordingly.
Activated inputs/outputs increase the computation time requirement of the interpolation cycle because the PLC
manipulation signals are handled cyclically. Note: deactivate any inputs/outputs not in use.
Programm
continuation:
Switch control OFF - ON.
SINUMERIK 808D ADVANCED alarms
5.2 NCK alarms
Diagnostics Manual
Diagnostics Manual, 06/2015, 6FC5398-6DP10-0BA2
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