Parameter Manual
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
395
Detailed descriptions of interface signals
4.8 Axis / spindle-specific signals
Application If the new gear stage cannot be engaged in spite of several oscillation
attempts by the NCK, the system can be switched to oscillation via the PLC.
Both of the times for the directions of rotation can then be altered by the
PLC user program as required. This ensures that the gear stage is reliably
changed - even with unfavorable gear wheel positions.
corresponding to ... MD35440 SPIND_OSCILL_TIME_CW (oscillation time for M3direction)
MD35450 SPIND_OSCILL_TIME_CCW (oscillation time for M4 direction)
IS "Oscillation speed" (DB380x DBX2002.5)
IS "Setpoint direction of rotation counter-clockwise" (DB380x DBX2002.7)
IS "Setpoint direction of rotation clockwise" (DB380x DBX2002.6)
Note for the reader Function Manual Basic Functions S1
DB380x
DBX2002.5
Oscillation speed
Signal(s) to axis / spindle (PLC → NCK)
Edge evaluation: No Signal(s) updated: Cyclic
Signal state 1 If the gear stage is to be changed (IS "Change gear stage" (DB390x
DBX2000.3) is set), then the spindle operating mode changes to the
oscillation mode.
Depending on the instant in time that IS "Oscillation speed" is set, the
spindle brakes down to standstill with different acceleration levels:
1. The IS "Oscillation speed" is set before the IS "Change gear stage" is
set by the NCK. The spindle is braked down to standstill with the
acceleration when oscillating (MD35410). Oscillation starts immediately
once the spindle is stationary.
2. The IS "Oscillation speed" is set after the IS "Change gear stage" is set
by the NCK and after the spindle is stationary. The position controller is
disabled. The spindle is braked with the acceleration in the speed
controlled mode. After the IS "Oscillation speed" is set, the spindle starts
to oscillate with the oscillation acceleration (MD35410).
If the IS "Oscillation via the PLC" (DB380x DBX2002.4) is not set, then
automatic oscillation is executed in the NCK using the IS "Oscillation
speed". The two times for the directions of rotation are entered into
MD35440 and MD35450.
If the IS "Oscillation via PLC" is set, then with the IS "Oscillation speed", a
speed is output in conjunction with the IS "Setpoint direction of rotation,
clockwise and counter-clockwise).
Signal state 0 The spindle does not oscillate.
Signal irrelevant for ... ... all spindle modes except for the oscillation mode
Application The oscillation speed is used to make it easier to engage a new gear stage.
correspon
ding
to ... IS oscillation via the PLC (DB380x DBX2002.4)
IS setpoint direction of rotation counter-clockwise (DB380x DBX2002.7)
IS setpoint of rotation clockwise (DB380x DBX2002.6)
Note for the reader Function Manual Basic Functions S1
DB380x
DBX2002.7 and .6
Setpoint direction of rotation, counter-clockwise and clockwise
Signal(s) to axis / spindle (PLC → NCK)
Edge evaluation: Yes Signal(s) updated: Cyclic
Siemens Controls
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