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Spindle (S1)
20.6 Spindle monitoring
Turning, Milling, Nibbling
360
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
20.6.2
Spindle in setpoint range
The "Spindle in setpoint range" monitor checks whether the programmed spindle speed has
been reached, whether the spindle is stationary (IS "Axis/spindle stationary") or whether it is
still in the acceleration phase.
In the spindle "control mode", the speed setpoint (programmed speed with spindle override
including the active limits) is compared with the actual speed. If the deviation of the actual
speed from the speed setpoint is greater than the spindle speed tolerance set in MD35150
SPIND_DES_VELO_TOL:
●
IS "Spindle in setpoint range" (V390x 2001.5) is set to zero.
●
The next machining block is not enabled if
MD35500 SPIND_ON_SPEED_AT_IPO_START is set.
20.6.3
Maximum spindle speed
Maximum spindle speed
A maximum speed is defined for "maximum spindle speed" spindle monitoring, which the
spindle may not exceed.
The maximum spindle speed is entered in MD35100 SPIND_VELO_LIMIT.
The control limits an excessive spindle speed setpoint to this value. If the actual spindle
speed exceeds the maximum spindle speed despite allowance for the spindle speed
tolerance (MD35150 SPIND_DES_VELO_TOL), there is a drive fault and IS "Speed limit
exceeded" (V390x 2002.0) is set. Furthermore the alarm 22100 is output and all axes and
the spindle are decelerated.
Speed limiting the PLC
The spindle speed can be limited to a specific value via the PLC. This value is in
MD35160 SPIND_EXTERN_VELO_UNIT and is activated via IS "Velocity/spindle speed
limitation" (V380x 0003.6).
20.6.4
Minimum/maximum speed for gear stage
Max. speed
MD35130 GEAR_STEP_MAX_VELO_LIMIT defines the maximum speed for the gear stage.
In the gear stage engaged, this set speed can never be exceeded. When the programmed
spindle speed is limited, the IS "Set speed limited" (V390x 2001.1) is enabled.