Burkert 8745 MFC Ethernet, Руководство по эксплуатации

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Electrical installation
Type 8745 Ethernet, 8745 Analogue
Tab. 32: Actions triggered by the switching levels
Function
Action depending on the activated switching level
Level 1 Level 2 Level 3
Activation:
Short-circuit the digital input
with the digital-input ground
Activation:
1...4 V DC
(alternatively: not connected)
Activation:
5...28 V DC
MFC: start autotune Triggers the function Not used Not used
MFC: actuator control
Triggers the closing of the
actuator
Triggers the normal operating
mode
Triggers the opening of the
actuator
MFM or MFC: reset totalizer Triggers the function Not used Not used
MFM or MFC: gas selection Changes to gas number 2 Changes to gas number 1 Changes to gas number 3
8.5.2 relay output
The D-sub DE-9 male connector has a relay output. The switching of the relay can show the following events:
•
MFC: The set-point value cannot be reached.
•
MFC: The product is doing an Autotune.
•
MFC: The set-point value source has changed.
•
MFM or MFC: A warning message has been generated. For example if the supply voltage is too high, then a warning message is
generated.
•
MFM or MFC: A failure message has been generated. For example if a sensor failure is detected, then a failure message is generated.
Tab. 33 shows the event that is assigned by default to the relay output of the D-sub DE-9 male connector of an MFC or an MFC.
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