HEIDENHAIN ITNC 530 - Page 49

July 2010 4 – 49
MC frequency too
high %.2s
 The maximum input frequency was
exceeded at an encoder input.
 Check encoder signal input frequency.
 See “Further Examination of Position and
Speed Encoders” on page 18 – 308.
MC NC
temperature out
of tol.
 See "Temperature too high (CPU%1 :=
%2°C)".
 See "Temperature too high
(CPU%1:= %2 °C)".
%.2s encoder:
amplitude too
large
 The amplitude of the encoder signal is too
high or the contamination signal is active.
 Check the amplitude of the encoder signal.
 See “Position Encoders” on page 18 – 277.
%.2s encoder:
amplitude too
small
 The amplitude of the encoder signal is too
small or the signal for contamination is
active.
 Check the amplitude of the encoder signal.
 See “Position Encoders” on page 18 – 277.
%.2s-measuring
system defective
 Contradiction apparent from comparison of
absolute and incremental positions
 Inform your service agency.
 See “Encoder Interface” on page 18 – 277.
%.2s encoder:
frequency too
high
 The maximum input frequency was
exceeded at an encoder input.
 Check encoder signal input frequency.
 See “Further Examination of Position and
Speed Encoders” on page 18 – 308.
NC: Pprogram
memory erased
 After the control was switched on, a file in
NC memory was found faulty and deleted.
 Create the file again.
 See “Restoring Data” on page 13 – 197.
EMERGENCY
STOP defective
 The internal or external EMERGENCY STOP
circuit is found by the system CPU to be
defective.
 Check the emergency-stop circuit.
 Relays, safety contactor combinations are
defective or too slow.
 Input I3 (X42/4) is permanently at 24 V.
 MC defective
 Check input I3 (See “Checking the "Control
is ready" output and input (EMERGENCY
STOP chain)” on page 16 – 233).
 Replace relays, safety contactor
combinations.
 See “Error message: EMERGENCY STOP
defective” on page 16 – 236.
Excessive offset
in <axis>
 During offset adjustment (with code number
or cyclic) an offset voltage of more than 100
mV was determined.
 Inform your service agency.
 See “Analog Speed
Command Interface” on
page 20 – 344.
Error message Possible cause of error Measures for error diagnosis and/or
corrective action
Additional information and descriptions in
the manual
Additional information and descriptions in
the manual