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8 Spindle/PLC Interface (DB 31)
05.91
8.4 Signals for synchronous mode from spindle
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AUTOMATICALLY CONTROLLED CORRECTION
DW L + 24, bit 6
1 signal:
Automatically controlled correction of following spindle.
0 signal:
Leading and following spindle operate normally.
Notes:
•
Automatically controlled correction is generally caused by a malfunction of the leading
spindle.
•
In the case of automatically controlled correction, the following spindle only follows the
actual values of the leading spindle.
•
The following spindle follows the movements of the leading spindle for a programmable
period (MD 9x6, x = 5, 7, 9 for following spindle 1, 2, 3).
•
The signal is of significance only to the following spindle in synchronous mode.
Example of application:
With this signal the PLC user program can recognize a malfunction before the link is
disengaged.
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MAXIMUM ACCELERATION
DW L + 24, bit 5
1 signal:
Maximum acceleration of the following spindle.
0 signal:
The acceleration of the following spindle is less than its limiting value.
Notes:
•
The maximum acceleration of the following spindle is determined by the "Acceleration time
constant with position control" (MD 478* to 485*).
•
The "FA x acceleration limit" alarm (x = 1, 2, 3 for following spindle 1, 2, 3) is issued at
the same time as the signal is set.
•
Monitoring can be deselected with the MD 502x, bit 3 "suppression of acceleration
limitation" (x = 1, 2, 3 for following spindle 1, 2, 3).
•
Synchronism between the leading and following spindles is endangered when the signal is
set.
•
The signal is of significance only to the following spindle in synchronous mode.
8
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Siemens AG 1991 All Rights Reserved 6ZB5 410-0HE02
SINUMERIK 880, (PJ)