HEIDENHAIN iTNC 530 HSCI - Page 48

February 2012 4 – 49
Relay external DC
voltage missing
 Error message after power interruption  Switch on the control voltage separately.
 EMERGENCY STOP key pressed on machine
operating panel or handwheel
 Axis is on hardware limit switch
 Wiring interrupted
 Relays, safety contactor combinations
defective
 X34 is not powered with 24 V
 "Control is ready" output of MC defective
 Release the EMERGENCY STOP switch.
 Retract the axis.
 Check the EMERGENCY STOP chain. (See
”"Control is ready" output and input
(EMERGENCY STOP chain)” on page 17 – 228.)
 If "Control is ready“ output is defective -->
replace the MC.
(See ”Exchange of HEIDENHAIN components”
on page 29 – 515.)
 See ”Checking the enables on the iTNC 530
HSCI” on page 17 – 225.
Stylus already in
contact
 The stylus is already deflected at the start of
probing movement.
 Retract touch probe, repeat probing.
 Inspect touch probe for damage.
 See ”Touch probes” on page 26 – 415.
Exchange touch
probe battery.
 Battery dead  Replace the battery.
 See ”Touch probes” on page 26 – 415.
Touch probe not
ready
 The touch probe is not connected.
 Battery dead
 No connection between infrared probe system
and receiver unit.
 Connect the touch probe.
 Replace battery
 Clean the receiver unit.
 Penetration of humidity
 Touch probe cable defective
 Cable to transceiver unit defective
 Contamination of probe and/or transmitter/
receiver unit --> No infrared connection
 Obstacle in the infrared connection or strong
shading of transmitter or receiver
 Several touch probes may be within the
receiving range of one SE; the infrared signals
cannot be allocated any more; faulty operation.
 Interface to touch probe or transmitter/receiver
unit on MC defective
 Dry the touch probe.
 Replace the cable.
 Clean touch probe and transmitter/receiver
unit.
 Remove the obstacle in the infrared
connection.
 R
eadjust receive range of SE.
 If the interface to touch probe or transmitter/
receiver unit on the MC is defective --> replace
the MC. (See ”Exchange of HEIDENHAIN
components” on page 29 – 515.)
 See ”Touch probes” on page 26 – 415.
TNC temperature
warning %dC
 The temperature sensor in the control has
detected an excessively high temperature
inside the control housing. If the temperature
continues to increase, the control hardware
may be damaged.
 Check the heat transfer in the electrical cabinet.
 Check the fan in the control.
 See ”Information menu” on page 18 – 261.
 See ”Temperature” on page 6 – 74.
TNC temperature
too high %d°C
 The temperature sensor in the LE has detected
an excessively high temperature inside the
control housing.
 Check for adequate heat transfer in the
electrical cabinet.
 Check the fan of the logic unit.
 See ”Information menu” on page 18 – 261.
 See ”Temperature” on page 6 – 74.
TS: Inadequate
consistency
 During multiple measurement with the
automatic probe cycle the variance of the
individual measured values is greater than the
value defined in machine parameter MP6171.
 Check whether the probe point and the stylus
are clean.
 Increase the tolerance in MP6171.
 See ”Touch probes” on page 26 – 415.
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