HEIDENHAIN iTNC 530 Service Manual page 57

Error
The machine is in the mode
Cross over reference
points which is neither
possible with the NC START
key nor with the axis
direction keys.
During reference run, the
machine moves to the limit
switch.
During reference run, the
machine moves to the
mechanical stop (for
machines without limit
switch).
An error message is
sometimes displayed, e.g.
8640 I2T value of motor is
too high ...
The machine executes the
reference run properly but
stops at a wrong position.
STIB ("Control-in-operation =
"*" in status display) remains
in place even though
positioning appears to be
completed.
In the automatic operating
modes the next NC block is
not executed; the NC
program gets caught up.
"Vibrating" axes, sometimes
connected with loud noises
The following error is too
high at axis standstill.
July 2010
Possible cause of error
Inverter system is not
ready for operation.
The trip dogs for direction
reversal during reference
run are defective.
The machine was
switched off at the wrong
position.
A wrong reference mark
was evaluated.
When executing a
reference run via the
motor encoder, the
switching signal is too
close to the requested
reference mark.
A magnet of scale is
shifted or defective.
The ref. mark selector
plate of a scale is shifted.
The enamel over a ref.
mark of a scale was
removed or is damaged.
Axis did not reach the
positioning window.
Excessive drift of analog
axes
Approach behavior of axis
not optimized.
Poor shielding or
grounding
Connectors on grounding
terminal X131 of infeed/
regenerative module
(Simodrive 611D) not
properly wired
Grounding terminal X131
of power supply module
(Simodrive 611D) or
grounding connection
damaged
Electrical offset of analog
axes
Measures for error
diagnosis and/or
corrective action
Check whether the
inverter system is ready.
Check the motor load.
Referencing with axis-
direction keys (no
automatic reference mark
traverse)!
Readjust the trip dog for
reference end position.
Readjust the magnet
(outside or inside the scale
housing) and fix it with
distance holders.
Readjust ref. mark
selector inside the scale
housing with special
slider.
Lacquer the ref. mark not
to be evaluated again or
replace the scale.
Perform drift adjustment
Reoptimization or new
optimization of the axis by
the machine manufacturer
Check the grounding of
your machine; consult
your machine
manufacturer.
Ensure that all grounding
clamps are secure.
Check the shielding or the
covers.
Carry out offset
adjustment.
Descriptions in this
manual
See "Checking the
readiness of the inverter
system" on page 16 –
243.
See "Reference Run" on
page 19 – 317.
See "Reference Run" on
page 19 – 317.
See "Readjusting the trip
dog for reference end
position" on page 18 –
305.
See "Interface to the
Drives" on page 20 – 323.
See "Notes and Tips" on
page 6 – 72.
See "Exchange of
HEIDENHAIN
Components in the
SIMODRIVE System" on
page 28 – 554.
See "Adjusting the
electrical offset (drift
adjustment)" on page 20 –
349.
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