Siemens SINUMERIK 828D Function Manual page 1614

Z1: NC/PLC interface signals
19.1 Various interface signals and functions (A2)
DB10
DBX108.7 NC ready
Signal state 0 The control is not ready. The relay contact "NC Ready" is open.
The following faults will cause NC Ready to be canceled:
•
•
•
If the signal "NC Ready" goes to 0 the following measures are introduced by the control if they are
still possible:
•
•
For further information see References!
The control is not ready again until after POWER ON.
Corresponding to ... Relay contact "NC Ready"
Additional references /DA/ Diagnosis Manual
/FB1/ Functions Manual basic Functions, PLC Basic Program (P3)
DB10
DBX109.0 NCK alarm is active
Edge evaluation: no
Signal state 1 At least one NCK alarm is present.
This is a group signal for the interface signals of all existing channels:
DB21, ... DBX36.6 (channel­specific NCK alarm is active).
Signal state 0 No NCK alarm is active.
Corresponding to ... DB21, ... DBX36.6 (channel­specific NCK alarm is active)
DB21, ... DBX36.7 (NCK alarm with processing stop present)
Additional references /DA/ Diagnostics Manual
DB10
DBX109.5 Heat sink temperature alarm, NCU 573
Edge evaluation: no
Signal state 1 In NCU 573, the limit values of the heat sink temperature was exceeded.
The heat sink temperature got activated and a steady operation of the operator panel is no longer
guaranteed.
Signal state 0 The heatsink monitoring function of the NCU 573 has not responded.
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Undervoltage and overvoltage monitoring function has responded
Individual components are not ready (NCK CPU Ready)
NC CPU watchdog
The controller enable signals are withdrawn (this stops the drives)
The following measures are introduced by the PLC basic program:
– Status signals from NCK to PLC (user interface) are deleted (cleared)
– Change signals for help functions are deleted
– Cyclic processing of the PLC to NCK user interface is terminated
Signal(s) updated: Cyclic
Signal(s) updated: Cyclic
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions