Detailed Description
2.1 Various interface signals and functions (A2)
NC/PLC Interface Signals (Z1)
2-6 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
DB10
DBX109.5
Heatsink temperature alarm NCU 573
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change 0 → 1
The limit values of the heatsink temperature were exceeded on the NCU 573.
The heatsink monitoring function has responded and the continuous operation of the operator
panel is no longer assured.
Signal state 0 or
edge change 1 → 0
The heatsink monitoring function of the NCU 573 has not responded.
DB10
DBX109.6
Air temperature alarm
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change 0 → 1
The ambient temperature or fan monitoring function has responded.
This could be due to the following:
• The temperature monitoring has identified an ambient temperature that is too high
(approx. 60°C). Alarm 2110 "NCK temperature alarm" is output.
• The speed monitoring of the 24 V DC fan used to cool the module has responded. Alarm 2120
"NCK fan alarm" is output.
Measures: Replace the fan and/or ensure that additional ventilation is provided.
When a temperature or fan error responds, a relay contact (terminal 5.1, 5.2 or 5.1, 5.3) in the
infeed/regenerative feedback unit is activated which can be evaluated by the customer.
Signal state 0 or
edge change 1 → 0
Neither the temperature monitoring nor the fan monitoring has responded.
Application
example(s)
Appropriate measures can be initiated by the PLC user program if the temperature or fan
monitoring is activated.
Corresponding to .... When a temperature or fan error responds, a relay contact (terminal 5.1, 5.2 or 5.1, 5.3) in the
infeed/regenerative feedback unit is activated. This can be evaluated.
References /DA/ Diagnostics Guide
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