Z1: NC/PLC interface signals
19.12 Feeds (V1)
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
1735
Application
example(s)
In the PLC user program, it can be identified via the interface signal that the spindle setpoint speed
has not been reached. Possible responses:
• Indicate that the status is permissible and enable path feed:
DB21, ... DBX6.0 = 0 (feed disable)
• Disable path feed or entire channel:
DB21, ... DBX6.0 = 1 (feed disable)
DB31, ... DBX83.5 (spindle in setpoint range) is processed
Safety Integrated
In addition to the limit value MD36931 $MA_SAFE_VELO_LIMIT, depending on the active safety
speed level SG1 ... SGn, the following machine data should be taken into account:
• MD36932 $MA_ SAFE_VELO_OVR_FACTOR
• MD36933 $MA_SAFE_DES_VELO_LIMIT
Example:
All standard limit values are greater than 1500 rpm.
• SG1 is active
• MD36932 $MA_ SAFE_VELO_OVR_FACTOR[<SG1>] = 1111.11111 [rev/min]
• MD36933 $MA_SAFE_DES_VELO_LIMIT[<SG1>] = 90%
Programming: M3 S1500
The speed setpoint is limited to 1000 rev/min (MD36932 * MD36933).
DB31, ... DBX83.1 = 1
Corresponding to ... DB21, ... DBX6.0 (feed disable)
DB31, ... DBX4.3 (feed / spindle stop)
DB31, ... DBX83.5 (spindle in setpoint range)
DB31, ...
DBX83.2 Setpoint speed increased (programmed speed too low)
Edge evaluation: yes Signal(s) updated: Cyclic
Signal state 1 or
edge change
0 → 1
The effective setpoint speed is below the actual min. limit value. The setpoint speed is limited to this
limit.
Limit values:
• MD35120 $MA_GEAR_STEP_MIN_VELO (min. speed for automatic gear stage selection M40)
• MD35140 $MA_GEAR_STEP_MIN_VELO_LIMIT (minimum speed of the gear stage)
• G25 (lower spindle speed limitation)
Signal state 0 or
edge change
1 → 0
The set speed of the spindle is outside the minimum limit value.
DB31, ...
DBX83.1 Setpoint speed limited (programmed speed too high)
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