Download Siemens SINUMERIK 802D sl Specifications

Transcript
Overview of alarms
06/2007
NCK alarms/ISO alarms
25020
Axis %1 zero mark monitoring of active encoder
Parameters:
%1 = axis name, spindle number
Definitions:
The position encoder pulses between 2 zero mark pulses are counted (hardware function). It checks
that the encoder always outputs the same number of pulses between two zero marks. As soon as a
difference is registered in the 4 low-significance counter bits, an alarm is triggered!
Reaction:
Mode group not ready.
The NC switches to follow-up mode.
Channel not ready.
NC Start disable in this channel.
Axes of this channel must be re-referenced.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy:
The differences can result from transmission errors, disturbances, encoder hardware faults or from
the evaluation electronics in the encoder used for position control. The actual value branch must therefore be checked:
Transmission path: Check the actual-value connector on the motor for correct contacting, check
encoder cable for continuity and short circuits or ground faults (loose contact?).
Encoder pulses: Encoder power supply within the tolerance limits?
Evaluation electronics: Replace or reconfigure the drive module used.
Monitoring can be switched off by setting MD 36310 ENC_ZERO_MONITORING to 0.
Program Continuation:
Teileprogramm neu starten.Clear alarm with the RESET key in all channels of this mode group.
Restart part program.
25021
Axis %1 zero mark monitoring of passive encoder
Parameters:
%1 = axis name, spindle number
Definitions:
Monitoring relates to the encoder that is not used by the position control! (Interface signal DB 31 - 48,
DBX 1.5 = 0 or 1.6 = 0)
The position encoder pulses between 2 zero mark pulses are counted (hardware function). A check
is made in the interpolation cycle grid (default setting 4 ms) as to whether the encoder always issues
the same number of pulses between the zero marks. As soon as a difference is registered in the 4
least-significance counter bits, an alarm is triggered!
Reaction:
Alarm display.
Remedy:
Please inform the authorized personnel/service department.
The differences can result from transmission errors, disturbances, encoder hardware faults or from
the evaluation electronics in the encoder used for position control. The actual value branch must therefore be checked:
1.Transmission path: Check the actual-value connector on the motor and on the FDD module for correct contacting, check encoder cable for continuity and for short circuits or ground faults (loose contact?).
2.Encoder pulses: Encoder power supply within the tolerance limits?
3.Evaluation electronics: Replace or reconfigure the drive module used.
Monitoring can be switched off by setting machine data ENC_ZERO_MON_ACTIVE [n]=... (n ...
encoder number: 1, 2) to 0.
Program Continuation:
Clear alarm with the Delete key or NC START.
25022
Axis %1 encoder %2 warning %3
Parameters:
%1 = Axis name, spindle number
%2 = Encoder number
%3 = Error fine coding
Definitions:
This alarm only occurs with absolute encoders:
a. Warning notice of missing absolute encoder adjustment (on the SIMODRIVE 611D or with PROFIdrive drives), that is if $MA_ENC_REFP_STATE equals 0. In this case, fine error code 0 is returned.
b. If a zero mark monitoring has been activated on the SIMODRIVE 611D for the absolute encoder
(see $MA_ENC_ZERO_MONITORING): In this case, the absolute position of the absolute encoder
could not be read without error:
2-250
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SINUMERIK 802D sl, Diagnostics Manual, 06/2007Edition