Description of blocks
3.3 Driver module DRV_3VL
Library SENTRON 3WL / 3VL for SIMATIC PCS 7
Function Manual, 11/2008, A5E02316914A-01
99
Diagnostics and maintenance
In order to display the current state of the circuit breaker, modules present, statistics
information and diagnostic messages, the module reads the status word from the process
image and data records 91 and 92.
The process image is called in cycles. The user can request the data records in the faceplate
via operations. The diagnostic messages are updated in cycles when messages are present.
WARNING
During maintenance work on the circuit breaker, maintenance mode must be activated!
At the same time, the circuit breaker must be locked locally to prevent it being switched
back on.
Maintenance specifications apply to the circuit breakers (in accordance with EN 50 110-1,
DIN VDE 0105-100 and BGV A2).
Protect. parameter and extended protect. parameter
This data, which comes from data records 128 and 129, is updated for the display in the
faceplate if requested by the operator.
These parameters cannot be written.
Setpoints
These parameters can be read and written from the faceplate.
3.3.4
Message behavior
DRV_3VL issues the following messages:
Message block
Message
number
Message text
Message class
1
Overload tripping (L)
AH
2
Instantaneous short-circuit (I)
AH
3
Short-time-delay short-circuit (S)
AH
4
Ground fault (G)
AH
5
---
---
6
Overload in neutral conductor
AH
7
Overload warning present
WH
MSG_EVID1
8
An activated setpoint value has been exceeded
WH
1
An alarm signal is currently present
WH
2
Error time synchronization
WH
3
Local turn off of circuit breaker / tripped
AH
MSG_EVID2
4
---
---
Содержание SENTRON 3WL
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