revision: 1
FlexxPump 250/400 DLS
User Manual
36
EN-
Description:
The FlexxPump 250/400 DLS is properly connected to an external controller via the
electrical interface and connected to the power supply.
There is an error at the FlexxPump 250/400 DLS.
The FlexxPump 250/400 DLS sends a permanent output signal (low level) to PIN 4,
which indicates an error to the external controller (PLC). This output signal must be
permanently and continuously present for >3 seconds.
The control signal 14 seconds with a signal length of 14 (13.9 ... 14.1) seconds high
level can be sent from the external control (PLC) to the FlexxPump 250/400 DLS. The
control signal is sent to the FlexxPump 250/400 DLS by the external control (PLC).
At the end of the control signal, the integrated microelectronics of the
FlexxPump 250/400 DLS will automatically check itself:
+If this internal check is successful, the output signal at the FlexxPump 250/400 DLS
changes from a low level to a high level; the error is thus acknowledged and the
FlexxPump 250/400 DLS is ready for operation again.
- If this internal check is not successful, the FlexxPump 250/400 DLS continues to
send a low level output signal. The error is still present. For further measures in this
case: Chap. 8.3.4.
A possible next control signal can be sent from the external controller (PLC) at the
earliest >3 seconds after the end of the error-free and successful motor run. In the
meantime, the FlexxPump 250/400 DLS does not process any control signals.
Regardless of the principle of remote acknowledgement of an error, it is essential to
identify and eliminate the cause when an error message is present.
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