Siemens SINUMERIK 840D sl Function Manual page 494

Diagnostics
10.2 NCK safety alarms for SINUMERIK 840D sl
Response
Program
continuation
27002
Parameter
Explanation
Response
Remedy
10-494
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
1016
Only in the drive: see F01711
Telegram has failed several times with the same crosswise data com-
parison data.
In the crosswise comparison clock cycle (= monitoring clock cycle *
number of crosswise comparison data) the comparison of the same list
data was not carried out several times in a row due to telegram failures.
Remedy
Check communications between the drive and control.
1020
Cyclic communications between the NCK and drive no longer functions.
Remedy
Analyze the other fault/error messages. Restart using power on.
1021
Only in the drive: see F01711
The telegram failed several times in the DRIVE–CLiQ communications
between the Sensor Module and drive. A sign–of–life error in the status
word of the Sensor Module was detected several times in a row.
Remedy
Check communications between the Sensor Module and the drive.
1025
The drive or encoder signaled "parking active" – however the control
had not requested "parking axis".
Remedy
Check the control signals to select the "parking" state.
1026
Plausibility error for cam synchronization between NCK and PLC.
Remedy
Check communications between the PLC, NCK and drive.
NC start inhibit in this channel
Alarm display
If a safety monitoring function was active (SBH, SG, SE, SN), then a
STOP B was also automatically initiated. It is necessary to power–
down the control and power it up again (power on).
Clear the alarm with the RESET key. Restart the part program.
If a STOP B was initiated, then the control must be power–down/pow-
ered–up (power on).
Axis %1 Test stop in progress
%1 = axis number
The proper and correct functioning of the shutdown path is presently
being tested by setting the SGE "test stop selection".
Alarm display
This message only provides information for the user.
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05.08