
9.SPINDLE FUNCTION B-63783EN-1/01
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9.12 SPINDLE WARNING DETAILED SIGNALS
Overview
An alarm was added to the spindle amplifier αi series. The alarm uses a
signal to indicate a warning status in advance.
If the spindle enters a warning status, the spindle amplifier sends the
warning number to the CNC, which in turn notifies the PMC of the
warning status.
Signals
Spindle warning detailed signals
SPWRN1 <F276#0>, SPWRN2 <F276#1>, SPWRN3 <F276#2>, SPWRN4 <F276#3>,
SPWRN5 <F276#4>, SPWRN6 <F276#5>, SPWRN7 <F276#6>, SPWRN8 <F276#7>,
SPWRN9<F277#0>,
[Classification] Output signal
[Function] The following warning statuses are reported before alarms are raised,
using the following warning interface, which is independent of the
conventional alarm interface.
The warning statuses are output using nine binary code signals. To put
another way, the spindle warning numbers and signals are associated
based on the following expression.
{}
9
8
8
1i
-1i
22 SPWRNSPWRNnumbergwarnineSpindl
i
×+×=
å
=
[Output condition] The following warning numbers are output according to the status of
the spindle amplifier.
Warning
number
Contents Spindle operation
56 SPM internal fan stopped
If it was detected that an internal cooling fan is
not running, the spindle amplifier sends the
warring number to the CNC. The spindle is
kept operating, however.
One minute later, the corresponding alarm
number is sent out, and the spindle becomes
idle.
88
SPM radiator cooling fan
stopped
If it is detected that an external cooling fan is
not running, the spindle amplifier sends the
warring number to the CNC. The spindle is
kept operating, however.
If the main circuit overheats because the
external cooling fan is not working, an alarm is
raised, and the spindle becomes idle.
58
Converter main circuit
overloaded
59 Converter cooling fan stopped
113
Converter radiator cooling fan
stopped
A warning number is output according to the
signal received from the PSM.
In the warning status, the spindle is kept
operating.