Siemens SINUMERIK 802D sl Specifikace stáhnout pdf (Strana 217)

NCK alarms/ISO alarms

06/2007 Overview of alarms

2-217

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

Remedy: Check the cam adjustment and make sure that the distance is sufficient between the end of the cam

and the zero mark signal that follows. The path must be greater than the axis can cover in the PLC

cycle time.

Increase MD 34 060 REFP_MAX_MARKER_DIST, but do not select a value greater than the distance

between the 2 zero marks as this might deactivate the monitor!

Program Con-

tinuation:

Clear alarm with the RESET key. Restart part program

20003 Channel %1 axis %2 measuring system error

Parameters: %1 = channel number

%2 = axis name, spindle number

Definitions: In a measuring system with distance-coded reference marks, the distance between two adjacent

markers has been found to be more than twice the distance entered MD 34300

ENC_REFP_MARKER_DIST. The control issues the alarm after having made a second attempt in

reverse direction with half the traversing velocity and detecting that the distance is too large again.

Reaction: NC Start disable in this channel.

Interface signals are set.

Alarm display.

NC Stop on alarm.

Remedy: Determine the distance between 2 odd reference marks (reference mark interval). This value (which

is 20.00 mm on Heidenhain scales) must be entered in MD 34 060 REFP_MAX_MARKER_DIST.

Check the reference track of the scale including the evaluation electronics.

Program Con-

tinuation:

Clear alarm with the RESET key. Restart part program

20004 Channel %1 axis %2 reference mark missing

Parameters: %1 = channel number

%2 = axis name, spindle number

Definitions: With a distance-coded linear measuring system, 2 reference marks have not been found within the

defined search section (axis-specific MD 34 060 REFP_MAX_MARKER_ DIST).

No reduction cam is required for distance-coded scales (but an existing cam will be evaluated). The

conventional direction key determines the direction of search.

The search distance MD 34060 REFP_MAX_MARKER_DIST, within which the two reference marks

are expected, is counted commencing at the start point.

Reaction: NC Start disable in this channel.

Interface signals are set.

Alarm display.

NC Stop on alarm.

Remedy: Please inform the authorized personnel/service department.

Determine the distance between 2 odd reference marks (reference mark interval). This value (which

is 20.00 mm on Heidenhain scales) must be entered in MD 34 060 REFP_MAX_MARKER_DIST.

Check the reference track of the scale including the evaluation electronics.

Program Con-

tinuation:

Clear alarm with the RESET key. Restart part program

20005 Channel %1 axis %2 reference point approach aborted

Parameters: %1 = channel number

%2 = axis name, spindle number

Definitions: Channel-specific referencing could not be completed for all the specified axes (e.g.: referencing

aborted due to: missing servo enable signal, measuring system switchover, direction key released,

etc.).

Reaction: NC Start disable in this channel.

Interface signals are set.

Alarm display.

NC Stop on alarm.

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