Siemens Sinumerik 840D sl Function Manual page 796

Sinumerik safety integrated

Hide thumbs Also See for Sinumerik 840D sl:

Table of Contents

10.5 Reducing the number of alarms

Reducing the number of alarms

In some cases, alarms having the same significance are initiated by the NCK, PLC

and SINAMICS S120 monitoring channels. In order to make the alarm screen

more transparent, the alarms that were initiated sometime later -- but have the

same significance -- are suppressed or even an alarm that occurred earlier is

cleared again if it apparently involves a subsequent (follow--on) fault/error.

Alarm suppression and alarm priority are not involved when it comes to initiating a

stop through two channels. This functionality is implemented independently of the

alarm being initiated and is still maintained.

Alarm suppression

When the alarm suppression function is active, the alarm of the monitoring channel

is displayed that first detected the fault/error that initiated the alarm.

This only applies to some of the alarms. Alarms whose information content differs

depending on the monitoring channels are still separately displayed.

All of the NCK and SINAMICS S120 safety alarms, which can be suppressed with

the appropriate parameterization of $MN_SAFE_ALARM_SUPPRESS_LEVEL,

are shown in the following table.

All of the NCK alarms are listed in the following table which can be prevented from

being initiated twice due to a PLC request.

SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition

Comparison of the NCK and SINAMICS S120 safety alarms

Alarm suppression using the following values in

$MN_SAFE_ALARM_SUPPRESS_LEVEL,

several values are alternatively possible.

3, 13, replaced by Alarm 27100

1, 2, 3, 12, 13

1, 2, 3, 12, 13

1, 2, 3, 12, 13

1, 2, 3, 12, 13

1, 2, 3, 12, 13

1, 2, 3, 12, 13

1, 2, 3, 12, 13

1, 2, 3, 12, 13

1, 2, 3, 12, 13

Sinamics s120