5 – 58 HEIDENHAIN Service Manual iTNC 530
Jerking movement of the
analog axis
Carbon brushes to supply
the motor with energy or
to pick off the
speedometer are abraded
on one side or used up.
Exchange the carbon
brushes.
The axes cannot be
traversed and the red LEDs
SH2 of all HEIDENHAIN
drive modules light up (or
the red LEDs SH2 or RESET
of the HEIDENHAIN
interface cards for the
SIMODRIVE system)
Drive release missing Check the releases. See “Checking the
Enables on the iTNC 530”
on page 16 – 229.
During processing the
motors run (axes, spindle)
down out of loop.
Defective braking resistor
(conversion of electrical
energy to heat energy not
possible)
Defective infeed/
regenerative feedback
module (energy recovery
not possible)
Interruption in the primary
supply (fuses, wires, etc.;
energy recovery not
possible)
Check the primary supply
(cables, fuses, terminals)
Check the function of the
inverter system or the
motors.
Check the wiring of the
inverter system, see
circuit diagrams of the
machine manufacturer.
See “Power Supply” on
page 17 – 251.
See "Service Manual for
Inverter Systems and
Motors".
When operating the iTNC
530 single-processor it
becomes slower and slower
until it becomes inoperable.
Defective USB unit is
connected to the control.
Disconnect all USB units
(e.g., touchpad) from the
control and boot again.
Error Possible cause of error Measures for error
diagnosis and/or
corrective action
Descriptions in this
manual
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