Descriptions of the PLC subroutines
3.15 Subroutine 42 - SPINDLE (spindle control)
PLC Subroutines Manual
Operating Instructions, 12/2012, 6FC5397-2EP10-0BA0
47
3.15 Subroutine 42 - SPINDLE (spindle control)
Purpose
Subroutine 42 is used for spindle control, including the spindle braking function. When the
braking function is activated, in the JOG mode press the "SPINDLE LEFT" key or "SPINDLE
RIGHT" key and then press the "SPINDLE STOP" key, after that, the spindle brakes. In the
AUTO mode, the spindle brakes when it changes rotating direction or coasts down. When
the spindle brakes, corresponding output becomes active; meanwhile, the spindle does not
accept rotary command until braking completes.
Local variable definition
Table 3- 7 Inputs
Name Type Description
DELAY WORD Spindle braking duration (unit: 0.1s)
DrvEn BOOL Drive enable
SP_EN BOOL Spindle action condition (1: allowed; 0: not allowed)
IsBrake BOOL Spindle braking function (1: enabled; 0: forbidden)
Table 3- 8 Outputs
Name Type Description
SP_brake BOOL Spindle braking output
SP_LED BOOL Spindle running state
Assigned global variables
SP_B_CMD BOOL Spindle braking command
T11 TIMER Spindle braking timer
Relevant PLC machine data
No. Type Description
14510 [13] BOOL Spindle braking duration (unit: 0.1s)
14510 [19].1 BOOL Selection of spindle braking function (1: enabled; 0:
forbidden)
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