B–63525EN/02
10. AC SPINDLE (SERIAL INTERFACE)
711
For the αi spindle, the warning state can be reported before an alarm is
issued. When the warning state is entered, a report to the PMC is sent.
For example, this signal can be used for retracting tools or reducing
cutting load from the time a warning occurs by the time an overheat alarm
occurs. In addition, diagnostic information also contains warning
numbers.
[Classification] Output
[Function] Reports the warning number corresponding to the state of the αi spindle
amplifier.
[Output condition] When the αi spindle is in the warning state, a warning number consisting
of SPWRN1 to SPWRN9 is output as nine–bit binary data.
If warnings occurred on multiple αi spindle amplifiers, the warning
number of the αi spindle having the smallest axis number is output.
However, when there is no αi spindle or the system configuration of the
spindle includes an additional spindle that is older than the αi spindle, this
function is invalid for all spindles.
The warning numbers and their descriptions are shown below.
Warning
number
Contents Details
56 Internal fan
stopped
If the internal fan stops, the warning signal is output.
Since the spindle continues to operate at this time,
use the PMC to perform processing as needed.
About one minute after the warning signal is output,
an alarm occurs.
88 Radiator cooling
fan stopped
If the radiator cooling fan stops, the warning signal is
output. Since the spindle continues to operate at this
time, use the PMC to perform processing as needed.
If the main circuit overheats, an alarm occurs.
04 Open–phase de-
tected in the con-
verter main pow-
er supply
If an open–phase is detected in the main power sup-
ply, the warning signal is output. Since the spindle
continues to operate at this time, use the PMC to per-
form processing as needed.
About one minute (for the PSM) or about five se-
conds (for the PSMR) after the warning signal is out-
put, an alarm occurs.
10.1.4
Warning Interface for
the αi Spindle
Overview
Signal
Spindle warning detailed
signals
SPWRN1 to 9
<F264#0 to #7, F265#0>