Siemens SINUMERIK 840D sl Function Manual page 747

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Table of Contents

All of the NCK alarms, which can be prevented from being initiated twice due to a PLC request,

are listed in the following table.

The alarm is suppressed using MD10094 $MN_SAFE_ALARM_SUPPRESS_LEVEL. When

standard data is loaded, the function is already active. This means that a reduced number/

scope of alarms is displayed. Alarms 27000 and C01797 can be replaced via MD10094 with

Alarm 27100.

MD $MN_SAFE_ALARM_SUPPRESS_LEVEL can also be used to set that Alarm 27040 is

replaced by the group alarm 27140 "Waiting for motor module of at least one axis".

SPL commissioning mode

The following alarm reductions are made in the commissioning phase:

The axis-specific acceptance test alarm 27032 "Axis %1 checksum error safe monitoring

functions. Confirmation and acceptance test required!", 27035 "Axis %1 new hardware

component, confirmation and functional test required" and 27060 "Axis %1 Drive assignment

checksum error, confirmation and acceptance test required!" are replaced by the axis-specific

group alarm 27132 "Axis %1 checksum group error safe monitoring functions. Confirmation

and acceptance test required", replaced.

An additional alarm reduction can be set using MD $MN_SAFE_ALARM_SUPPRESS_LEVEL

(100's position set). As a result, the axis-specific acceptance test alarms are replaced by the

Safety Integrated

Function Manual, 12/2017, 6FC5397-4BP40-6BA1

Alarm suppression using the following values in $MN_SAFE_ALARM_SUP‐

PRESS_LEVEL, several values are alternatively possible

1, 2, 3, 12, 13

1, 2, 3, 12, 13

1, 2, 3, 12, 13

1, 2, 3, 12, 13

Alarm suppression using the following values in $MN_SAFE_ALARM_SUPPRESS_LEV‐

EL, several values are alternatively possible.

2, 3, 12, 13

11.5 Reducing the number of alarms