Siemens SINUMERIK 840D Diagnostics Manual page 43

10.04
Reactions:
Remedy:
Program Continuation:
4100
Definitions:
Reactions:
Remedy:
Program Continuation:
4101
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
4102
Definitions:
Reactions:
Remedy:
Program Continuation:
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
- NC Start disable in this channel.
- Alarm display.
Set the machine data correctly.
Switch control OFF - ON.
System cycle time/scan time divider corrected for digital drive
The machine data 10050 SYSCLOCK_CYCLE_TIME (system clock cycle time) and/or
MD 10080 SYSCLOCK_SAMPL_TIME_RATIO (dividing factor of the position control
cycle for actual value acquisition) have been corrected. If this requirement cannot be sat-
isfied with the entered values (e.g. because the system clock cycle time is not a multiple
of 31.25 ms), then the system clock cycle time is automatically expanded until the drive
clock cycle time lies within the 31.25 ms grid.
The modifications were so made that, due to the selection of the system clock cycle time
in MD 10050 SYSCLOCK_CYCLE_TIME, the programmable hardware divider 1 was
readjusted in such a way that the selected time and the basic drive cycle result in a 31.25
ms grid. If this requirement is unfeasible (e.g. because the system clock cycle is not a
multiple of 31.25 ms), the system clock cycle is automatically increased until the basic
drive cycle is in a 31.25 ms grid.
The new value of the SYSCLOCK_CYCLE_TIME can be obtained from the MD 10050.
The position control cycle can be set with the following gradations:
• up to 4 ms: 125 µs step
• up to 8 ms: 250 µs step
• up to 16 ms: 0.5 ms step
• up to 32 ms: 1 ms step
- Alarm display.
No remedial measures are required. The alarm display can be canceled with Reset.
Clear alarm with the Delete key or NC START.
Position control cycle for digital drive reduced to %1 ms
%1 = String (time in ms)
The position control clock divisor in the NCK MD 10060
POSCTRL_SYSCLOCK_TIME_RATIO was set such that a position control cycle time of
more than 16 ms resulted. The boundary value for the drive actuator 611D is however 16
ms.
- Alarm display.
No remedial measures are required. The alarm display is canceled with Reset.
Switch control OFF - ON.
Default values for drive cycle times differ
External control modules of the 611D bus and the controls within the CCU3 module have
different default values for the current and speed control cycle times.
- Interpreter stop
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
External control modules of the 611D bus and the controls within the CCU3 module have
different default values for the current and speed control cycle times.
Check the specified values and modify accordingly (see MD_CURRCTRL_CYCLE_TIME
and MD_SPEEDCTRL_CYCLE_TIME).
Switch control OFF - ON.
1 Alarms
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