Siemens SINUMERIK 840Di Diagnostic Manual page 46

Overview of Alarms
NCK alarms
4101 Position control cycle for digital drive reduced to %1 ms
Parameters: %1 = String (time in ms)
Definitions: 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.
Reaction: Alarm display.
Remedy: No remedial measures are required. The alarm display is canceled with Reset.
Program Switch control OFF - ON.
Continuation:
4102 Default values for drive cycle times differ
Definitions: 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.
Reaction: Interpreter stop
NC Start disable in this channel.
Interface signals are set.
Alarm display.
Remedy: 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).
Program Switch control OFF - ON.
Continuation:
4110 IPO cycle factor changed to %1
Parameters: %1 = String (new IPO cycle time)
Definitions: The IPO cycle divisor was set to a value which was not an integral multiple of the position control cycle
divisor. The divisor (MD 10070 IPO_SYSCLOCK_TIME_RATIO) was increased.
IPO_SYSCLOCK_TIME_RATIO has been modified on systems with PROFIBUS DP because of the
modified DP cycle in SDB-Type-2000 (MD 10050 SYSCLOCK_CYCLE_TIME).
Reaction: Alarm display.
Remedy: Machine data 10070 IPO_SYSCLOCK_TIME_RATIO has been modified.
Program Clear alarm with the RESET key. Restart part program
Continuation:
4111 PLC cycle increased to %1 ms
Parameters: %1 = String (new PLC cycle time)
Definitions: The PLC cycle divisor was set to a value which was not an integral multiple of the IPO cycle divisor.
The divisor (MD 10074 PLC_IPO_TIME_RATIO ) has been increased. MD 10074
PLC_IPO_TIME_RATIO has been modified on systems with PROFIBUS DP because of the modified
DP cycle in SDB-Type-2000 (MD 10050 SYSCLOCK_CYCLE_TIME).
Reaction: Alarm display.
Remedy: Machine data 10074 PLC_IPO_TIME_RATIO has been modified.
Program Clear alarm with the RESET key. Restart part program
Continuation:
4112 Servo cycle changed to %1 ms
Parameters: %1 = String (new servo cycle time)
Definitions: MD 10060 POSCTRL_SYSCLOCK_TIME_RATIO has been modified on systems with PROFIBUS
DP because of the modified DP cycle in SDB-Type-2000 (10050 SYSCLOCK_CYCLE_TIME).
Reaction: Alarm display.
Remedy: Machine data 10060 POSCTRL_SYSCLOCK_TIME_RATIO RATIO has been modified.
Program Clear alarm with the RESET key. Restart part program
Continuation:
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© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006