Status Of Heidenhain Inverters - HEIDENHAIN iTNC 530 Service Manual

3.3.11 Status of HEIDENHAIN inverters

The HEIDENHAIN power supply units have several status signals which lead to error messages
on the control:
Status Signal
DC-link voltage too high
(ERR.UZ.GR)
Heat sink temperature too high
(ERR.TEMP)
Excessive DC-link current
(ERR.IZ.GR)
Power supply unit not ready
(RDY.PS)
Excessive leakage current
(ERR.ILEAK)
MP2195 is used to suppress the error message for each status signal.
In general these errror messages should not be suppressed!
Exception: If you are using a UE 2xx, the signals must be suppressed because this compact
inverter does not provide these signals.
Warning and danger signals are low-active; i.e., line-break proof!
Status signals that
are already low-
The handling of status signals of the HEIDENHAIN power supply unit that are already low-active
active or not
or not available during control start-up, varies depending on MP2195 bit 0.
available during
MP2195 bit 0 = 0:
control start-up
Missing signals cannot be detected with Module 9066 and do not result in an error message
when the drive is switched on.
MP2195 bit 0 = 1:
After the PLC program has been compiled, missing signals can be detected with Module 9066
and trigger an error message when the drive is switched on. Signals that are not provided by the
power supply unit (e.g. non-HEIDENHAIN inverter system, "older" HEIDENHAIN inverters) must
be suppressed with MP2195 (bit 1 to bit 6), because non-existent signals are always identified
as errors.
The SUPPLY.SPY table for the power supply modules contains the STATUS-SIG column for the
status signals of the power supply module. This column informs you, among other things,
whether the PF.PS.AC and PF.PS.DC is supported by the power supply module. This information
in SUPPLY.SPY is evaluated by the CC424 (B) and higher.
3 – 682
Associated Error Message
8080 Uz UV 1xx too high
8040 Heat sink temperature UV
1xx
8041 Excessive Iz in UV 1xx
8061 No inverter-ready signal
8060 Leakage current in UV 1xx
too high
Note
Status information of the HEIDENHAIN inverters can also be read with PLC module 9066
--> Ask your machine tool builder whether this PLC module is evaluated and how the
information is displayed.
Possible Causes of Error
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)
Excessive load of the power supply unit
Temperature in the electical cabinet too high
Fan defective
Temperature sensor defective
Unfavorable mounting of components
Overload of the machine while machining a
workpiece
Tool is worn
Inverter defective
Control of inverter defective (load and main
contactor)
Insulating problems (motor, cable, etc.)
Humidity has entered the motor
HEIDENHAIN Service Manual iTNC 530