Siemens SINUMERIK 880 GA2

05.91 4 Programming of Motion Blocks
4.2.17 Synchronous spindle G201/G202
Preconditions for executing the function G201
• The ”Synchronous spindle” Option must be set. The alarm ”Option not available” is
issued if this is not the case.
• The interface signal INTERLOCK SYNCHRONOUS OPERATION must not be set.
• The leading and following spindle must be synchronized with their encoders. The interface
signal SERVO ENABLE must be set for both spindles.
• Both spindles must be assigned to the same channel (DB 31).
Additional preconditions for the submode ”With defined angle offset”
• The angle must be located within the range from 0 to 359.99 degrees. The alarm
”Incorrect angle value” is issued if this is not the case.
• The setting data bit ”FS overlay On” must be set (SD 500x, bit 2, x=4, 6, 8 for
FS 1, 2, 3). The alarm ”FA x overlay inhibited” (x=1, 2, 3 for FS 1, 2, 3) is issued if this
not the case.
• The setting data bit ”Acceleration limitation synchronous” should be set (SD 500x, bit 2;
x=4, 6, 8 for FS 1, 2, 3). This ensures the defined angle offset to be retained even after
acceleration and braking operations.
Example:
In the program below, the following assignment applies:
• Spindle 1 = leading spindle
• Spindle 3 = following spindle
:
:
N10 G201 S3= A123,45 L
F
Activate coupling between spindle 1 and 3;
: defined offset angle of 123.45 degrees
:
:
:
:
N55 G202 S3=100 L
F
Eliminate coupling; new speed of following spindle:
100 rev/min
:
:
:
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For further information, please refer to the Function Manual
”Extended Spindle Functions”.
© Siemens AG 1991 All Rights Reserved 6ZB5 410-0HD02 4–53
SINUMERIK 880, (PG)