
6. DIGITAL SERVO
B–64115EN/01
396
The αi servo system can report the warning status before one of the
following target alarms occurs.
When the warning status is entered, a report to the PMC is issued.
For example, this signal can be used by the machine for retracting tools
from the time a warning occurs by the time a servo alarm occurs.
[Classification] Output signal
[Function] Reports the warning signal corresponding to the state of the servo
amplifier.
[Output condition] The following table shows the warning statuses of the servo amplifier and
their corresponding warning signals.
Corresponding alarm messages
Warning status signals (F93)
Time from when a
warning state signal is
Corresponding alarm messages
SVWRN4
(#7)
SVWRN3
(#6)
SVWRN2
(#5)
SVWRN1
(#4)
issued to until an alarm
occurs
444 n AXIS: INV. COOLING FAN FAILURE 1 0 0 0 One minute
601 n AXIS: INV. RADIATOR FAN FAILURE 1 0 0 1 Until overheat occurs
(inconstant)
443 n AXIS: CNV. COOLING FAN FAILURE 1 1 0 0 One minute
606 n AXIS: CNV. RADIATOR FAN FAILURE 1 1 0 1 Until overheat occurs
(inconstant)
431 n AXIS: CNV. OVERLOAD 1 1 1 0 One minute
607 n AXIS: CNV. SINGLE PHASE FAILURE 1 1 1 1 PSMR: Five seconds,
PSM: One minute
6.5
αi SERVO WARNING
INTERFACE
General
Signal
Servo warning detail
signals
SVWRN1 to 4
<F093#4 to #7>