Siemens SINUMERIK 840Di Function Manual page 79

2.1.6 Clamping monitoring
Clamping monitoring
Afterward, the zero speed monitoring monitors the compliance with the configured standstill
tolerance.
For machine axes that are mechanically clamped upon completion of a positioning operation,
larger motions can result from the clamping process.
Clamping monitoring monitors the adherence to the configured clamping tolerance:
MD36050 $MA_CLAMP_POS_TOL (Clamping tolerance)
Activation
The clamping monitoring is activated by the following interface signal:
DB31, ... DBX2.3 (clamping in progress)
Note
The clamping monitoring is not active in "follow-up mode":
DB31, ... DBX1.4 == 1 (follow-up mode)
Effect
Upon exceeding of the clamping tolerance, the following occurs:
• Alarm: "26000 clamping monitoring" is displayed.
• The affected axis is stopped via the configured braking ramp in follow-up mode:
• If the axis/spindle is involved in interpolation with other axes/spindles, these are brought
Automatic stopping for removal of the clamp
If a clamped axis must be traversed again in continuous-path mode, the NC stops the path
motion for Look Ahead at the start of the motion block of the clamped axis until the clamped
axis can once again be traversed. If the clamping is released before stopping, the path
motion is not stopped.
Parameterization:
MD36052 $MA_STOP_ON_CLAMPING = 'H01'
Axis Monitoring, Protection Zones (A3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
MD36610 $MA_AX_EMERGENCY_STOP_TIME
(Time for braking ramp when an error occurs)
to a standstill with rapid stop (set velocity = 0).
Detailed Description
2.1 Motion monitoring functions
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