Monitoring Functions (Axis) - Siemens SINUMERIK FM-NC Installation And Startup Manual

03.96
6.9.11

Monitoring functions (axis)

References:
Monitoring of
During positioning, a function monitors whether the axis has reached the
positioning positioning window (exact stop). It also monitors whether an axis for which no
traverse command is pending leaves a certain tolerance window (zero speed
monitoring, clamping tolerance).
MD 36000
STOP_LIMIT_COARSE (fine exact stop)
S
MD 36010 STOP_LIMIT_FINE (fine exact stop)
S
MD 36020
POSITIONING_TIME (coarse exact stop delay)
S
S
MD 36030
STANDSTILL_POS_TOL (zero speed tolerance)
S
S
MD 36040
STANDSTILL_DELAY_TIME (zero speed monitoring delay)
S
S
MD 36050
CLAMP_POS_TOL (clamping tolerance)
S
S
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SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
6 Assigning Parameters to the Control and the PLC Program
/FB/, A3, "Axis monitoring"
IS "Position reached with coarse exact stop" (DB31, ... DBX60.6).
IS "Position reached with fine exact stop" (DB31, ... DBX60.7).
This MD represents the delay after which the actual value must have
reached the "Fine exact stop" tolerance window when the setpoint position
at the block end is reached.
If the value does not reach the fine exact stop window within this time, the
alarm "25080 axis [name] positioning monitoring" is generated.
The control switches to follow-up mode.
The machine data specifies the position tolerance which a stationary axis
may not leave.
If the axis leaves the tolerance window, the alarm "25040 axis [name] zero
speed control" is output. The control switches to follow-up mode.
The MD represents the delay after which the actual value must have
reached the "zero speed tolerance" window when the setpoint position at the
block end is reached.
If the position tolerance is not reached within this time, the alarm "25040 axis
[name] zero speed monitoring" is generated.
The control switches to follow-up mode.
Position tolerance while the "clamping active" signal is present at the PLC
interface. When the tolerance is exceeded, the alarm "26000 axis [name]
clamping monitoring" is generated.
IS "Clamping active" (DB31, ... DBX2.3)
6.9 Axes and spindles
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