Actual speed = set speed
The status display of the drive as to whether the actual speed value matches the speed setpoint
corresponds to the interface signal:
DB31, ... DBX94.6 "|n
act
| < n
set
".
Status Meaning Display
1 The speed deviation between the setpoint and actual value is within the tol‐
erance specified in p2163.
Yes
0 The speed deviation between setpoint and actual value is outside the speci‐
fied tolerance.
No
Diagnostics for alarms
This information is also provided as a diagnostic tool for diagnosing the causes of alarms such
as:
● Drive fault:
⇒ SC1 drive alarm message is set.
⇒ Check specified drive data set, specified motor data set, DC-link voltage.
● Alarm 25040 "Standstill monitoring",
Alarm 25050 "Contour monitoring",
Alarm 25060 "Speed setpoint limitation",
Alarm 25080 "Positioning monitoring"
⇒ the drive enable may be missing (PLC pulse enable not present); this results in the display
Pulses enabled = No.
● Motor temperature = exceeded
⇒ check the current motor temperature.
For details on the behavior of the NC control in response to individual alarms, and remedial
action, please refer to:
References
Diagnostics Manual
18.3 System utilization
For the NC areas, you have the option of displaying the system resources (utilization display)
currently being used:
● Runtime for the position controller, interpolator and preprocessing
● Time required for synchronized actions
● Position controller and interpolator NC load
● Interpolator buffer level
Service and diagnostics
18.3 System utilization
SINUMERIK Operate (IM9)
Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1 425
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