Siemens SINUMERIK 840D sl Series Diagnostics Manual page 420

Overview of Alarms
27113
Axis %1 hardware encoder error of the safe actual value.
Parameters: %1 = Axis number
Definitions: Encoder evaluation outputs a hardware error. The reasons may be pollution in
the visual encoder evaluation or problems during signal transmission.
Reactions: - Alarm display.
In addition, a Stop F is triggered that may cause follow-up alarm 27001 with error code 0
as well as
alarms 27023 and 27024.
Alarm 27001 with error code 0 can be avoided by alarm reduction
($MA_SAFE_ALARM_SUPPRESS_LEVEL higher or equal to 1).
Remedy: Verification of compliance with the EMC regulations.
Replace the encoder hardware.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
27124
Stop A triggered at least in 1 axis
Definitions: This is only an informational alarm indicating that Stop A has been triggered in at least
one axis and Power On is required for alarm acknowledgment. This alarm occurs if the
alarm priority function was activated in MD $MN_SAFE_ALARM_SUPPRESS_LEVEL.
Reactions: - Interface signals are set.
- Alarm display.
Trigger a "Pulse suppression" for the affected axis.
Remedy: Find the error cause by means of further alarm messages.
Program Con- Switch control OFF - ON.
tinuation:
27140
Waiting for motor module of at least one axis.
Definitions: Alarm during ramp-up as long as the motor module of at least one axis is not yet ready for
SI.
Communication to the motor module during ramp-up has not yet been activated; the
safety functions of at least one axis are not yet available.
Via MD $MN_SAFE_ALARM_SUPPRESS_LEVEL (MD<3) the alarm display can be set
to display for each axis individually whether communication has been activated.
Reactions: - Interface signals are set.
- Alarm display.
Remedy: The alarm will remain present during ramp-up, if at least one drive does not communicate
(for example, PROFIBUS connector fallen off). Otherwise the alarm will be displayed only
shortly and is deleted automatically.
The alarm may remain present during start-up, even if safe motion monitoring was acti-
vated in $MA_SAFE_FUNCTION_ENABLE only, but not in the corresponding parameter
of the drive (P9501).
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
27200
PROFIsafe: cycle time %1 [ms] too long
Parameters: %1 = Parameterized cycle time
Definitions: The PROFIsafe communication cycle time resulting from MD
$MN_PROFISAFE_IPO_TIME_RATIO and MD $MN_IPO_CYCLE_TIME exceeds the
permissible limit value (25 ms).
Reactions: - Mode group not ready.
- Channel not ready.
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005