4 – 54 HEIDENHAIN Service Manual iTNC 530
5-V power supply
too low
The 5V supply voltage of the control is too
low.
Check the power supply.
Check the current consumption of the
consumers (encoders).
Inform your service agency.
See “Power Supply” on page 17 – 251.
See “Error Localization by Process of
Exclusion” on page 6 – 66.
See Service Manual Inverter Systems and
Motors.
Supply voltage
missing at X44
Missing supply voltage on connector X44. Check the wiring.
Inform your service agency.
See “Power Supply for PLC Outputs” on
page 17 – 268.
Inverter is not
ready for
operation
After a "safe stop" the inverter did not return
to the ready state.
Inform your service agency.
See “Checking the Enables on the iTNC
530” on page 16 – 229.
See Service Manual Inverter Systems and
Motors.
Insufficient
system memory
There are too many NC software versions
on the control.
Delete NC programs that are no longer
required.
See “Reloading the NC Software Used” on
page 14 – 209.
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
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