
11.SPINDLE SPEED FUNCTION B-63943EN-1/02
- 1476 -
• The maximum speed in spindle synchronous control depends on
the maximum speed (parameter No. 4020) of the spindle motor
of the master spindle.
Example)
Maximum speed of the spindle motor of a master spindle:
6000 min
-1
Maximum speed of the spindle motor of a slave spindle:
4500 min
-1
In the example above, 6000 min
-1
is specified as the maximum
speed of the master spindle for 12bit = 4095. However, when
6000 min
-1
is specified in spindle synchronous control, the
excessive-speed alarm (spindle unit side alarm AL-07) is issued
with the slave spindle.
So, do not specify a speed exceeding 4500 min
-1
in the example
above.
Diagnosis display
0418 Position deviation of each spindle
When spindles are involved in a position loop, the position deviation
of each spindle is indicated.
The unit of a detector used in each mode is used.
0425 Synchronization error of each spindle
The absolute value of the synchronization error of each spindle in
spindle synchronization is indicated.
A synchronization error is indicated with a slave spindle.
Spindle screen (spindle synchronous control)
In the spindle synchronous control mode, the spindle screen displays
the information below.
"Position deviation" indicates the position deviation of the spindle
currently displayed.
"Synchronization error" indicates the absolute value of a
synchronization error in spindle synchronization. The value of a
synchronization error is displayed on the spindle screen for the slave
spindle.
When bit 3 (SVP) of parameter No. 3799 is set to 1, "synchronous
deviation" indicates the peak hold value of a synchronization error.
Actual spindle speed (1/MIN) motor
speed (1/MIN)
Actual loop gain (0.01/S)
Spindle position deviation (PLS)
Synchronization error (PLS)