Siemens SINUMERIK 802D sl Dokumentacja Pobierz pdf (Strona 59)

NCK alarms/ISO alarms

06/2007 Overview of alarms

2-59

SINUMERIK 802D sl, Diagnostics Manual, 06/2007Edition

Definitions: An axis/spindle has been positioned over several NC blocks using the POSA/SPOSA instruction. The

programmed target position had not yet been reached ("exact stop fine" window) when the axis/spin-

dle was reprogrammed.

Example:

N100 POSA[U]=100

N125 X... Y... U... ; e.g.: U axis still travels from N100!

Reaction: NC Start disable in this channel.

Interface signals are set.

Alarm display.

NC Stop on alarm.

Remedy: Check and correct the part program (analyze whether motion beyond block boundaries is appropriate

here). Prevent block change by means of the vocabulary word WAITP until the positioning axes have

also reached their target position.

Example:

N100 POSA[U]=100

N125 WAITP[U]

N130 X... Y... U...

Program Con-

tinuation:

Clear alarm with the RESET key. Restart part program

10620 Channel %1 block %3 axis %2 at software limit switch %4

Parameters: %1 = channel number

%2 = axis name, spindle number

%3 = block number, label

%4 = string

Definitions: During the traversing motion, the system detected that the software limit switch would be crossed in

the direction indicated. Unable to detect overstepping of the traversing area because a motion overlay

was made by the handwheel.

Reaction: Local alarm reaction.

NC Start disable in this channel.

Interface signals are set.

Alarm display.

NC Stop on alarm at block end.

Remedy: The following remedies apply, depending on the cause:

Handwheel override Cancel the motion overlay and avoid this or keep it smaller when the program is

repeated.

Check the transformation of the preset/programmed zero offsets (current frame). If the values are cor-

rect, the tool holder (fixture) must be moved in order to avoid triggering the same alarm when the pro-

gram is repeated, which would again cause the program to be aborted.

Program Con-

tinuation:

Clear alarm with the RESET key. Restart part program

10621 Channel %1 axis %2 rests on software limit switch %3

Parameters: %1 = channel number

%2 = axis name, spindle number

%3 = string

Definitions: The specified axis is already stationary at the displayed software limit.

Reaction: Alarm display.

Remedy: The machine data:

MD 36110 POS_LIMIT_PLUS/MD 36130 POS_LIMIT_PLUS2 and MD 36100

POS_LIMIT_MINUS/MD 36120 POS_LIMIT_MINUS2 must be checked for the software limit

switches.

Check the axis-specific interface signals: "2. Check whether 2nd software limit switch is selected with

2nd software limit switch "Plus" (V 380x1000.3) and 2nd software limit switch "Minus" (V 380x1000.2).

Program Con-

tinuation:

Alarm display showing cause of alarm disappears. No further operator action necessary.

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Siemens SINUMERIK 802D sl Dokumentacja Strona 59

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Siemens SINUMERIK 802D sl Dokumentacja Strona 59

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