Siemens SINUMERIK 840DE sl Commissioning Manual page 439

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
Status
1
0
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
SINUMERIK Operate (IM9)
Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1
| < n ".
act set
Meaning
The speed deviation between the setpoint and actual value is within the tol‐
erance specified in p2163.
The speed deviation between setpoint and actual value is outside the speci‐
fied tolerance.
Service and diagnostics
18.3 System utilization
Display
Yes
No
425