HEIDENHAIN iTNC 530 HSCI - Page 1307

July 2013 8.1 Display and operation 1307
DC-link voltage>> The signal reports the status of the DC-
link voltage: Either it is OK or too high.
This signal also switches off all power
modules (via the unit bus).
Possible error causes:
 Missing or faulty braking resistor
 Excessive braking power
 Gray: No information about the
signal available
 Green: DC-link voltage OK
 Red: DC-link voltage too high
Temperature The signal reports the status of the heat
sink temperature in the inverter: Either it
is OK or too high.
 Gray: No information about the
signal available
 Green: Temperature OK
 Red: Temperature too high
DC-link current >> The signal reports the status of the DC-
link current: Either it is OK or too high.
Both the positive and the negative DC-link
currents are evaluated.
 Gray: No information about the
signal available
 Green: DC-link current OK
 Red: DC-link current too high
Power supply unit
ready
The signal reports the ready status of the
supply unit: supply unit ok, main
contactor on, or supply unit not ready.
 Gray: No information about the
signal available
 Green: Supply unit OK, main
contactor on
 Red: Power supply unit not ready
Ground fault The signal reports the status of the
leakage current monitoring: Either it is OK
or too high or there is a ground fault.
 Gray: No information about the
signal available
 Green: Leakage current OK
 Red: Leakage current too high or
ground fault
Reset from CC to
UV
Signal –RES.LE. Reset from controller
unit to supply module. Resets the error
memory in the supply module.
 Gray: No information about the
signal available
 Green: Reset signal is not active
 Red: Reset signal is active
Signal Meaning Colors