HEIDENHAIN iTNC 530 Service Manual page 58

Error
Jerking movement of the
analog axis
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)
During processing the
motors run (axes, spindle)
down out of loop.
When operating the iTNC
530 single-processor it
becomes slower and slower
until it becomes inoperable.
5 – 58
Possible cause of error
Carbon brushes to supply
the motor with energy or
to pick off the
speedometer are abraded
on one side or used up.
Drive release missing
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)
Defective USB unit is
connected to the control.
Measures for error
diagnosis and/or
corrective action
Exchange the carbon
brushes.
Check the releases.
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.
Disconnect all USB units
(e.g., touchpad) from the
control and boot again.
HEIDENHAIN Service Manual iTNC 530
Descriptions in this
manual
See "Checking the
Enables on the iTNC 530"
on page 16 – 229.
See "Power Supply" on
page 17 – 251.
See "Service Manual for
Inverter Systems and
Motors".