power automation PA 8000 LW Series, Installation Instructions Manual, Page: 114 / 132

LED state Module status
Off The power supply voltage for the onboard logic is out-
side its tolerances
OR The ambient temperature is above 60 °C (140 °F)
On The power supply voltage for the onboard logic is in
rated range
AND The +/- 15 V supply voltage for the analog I/O func-
tions is in rated range
AND The ambient temperature is below 60 °C
(140 °F) (rated range)
LED state Module status
Off The CNC is not ready (see
Ä
Chapter 2.7 “Safety
devices” on page 18 ) or the power supply for the RMS
is outside of the tolerated values or the ambient tem-
perature is T>55 °C (131 °F). In all these cases, the
analog outputs are set to 0V.
On The CNC is ready (see
Ä
Chapter 2.7 “Safety
devices” on page 18 ), the power supply for the RMS is
in rated range and the ambient temperature is
T<55 °C (131 °F). The analog outputs are released.
– Interferences on the signals
– Status directly after power-up
– Signal frequency is too high
– Phase displacement between the input signals is unlike 90°°
A wrong sequence of axis signals is detected when the A and B
track of an incremental measuring system shows incorrect
sequence of rising and falling edges. This can occur in case of:
LED "Power OK" (9)
LED "CNC Ready" (10)
NOTICE
PA 8000 LW CNC control unit
Troubleshooting
25.09.2015 | 114