Inhaltsverzeichnis
Werbung
Verfügbare Sprachen
Verfügbare Sprachen
8.7.26 Digital inputs (4.3.7)
Fig. 77 Digital inputs
Description
In the menu, you can set the digital inputs of CU 354 and IO
351B. Each input, except DI1, can be activated and related to a
certain function.
As standard, the system has 12 digital inputs.
All digital inputs are shown so that their physical position in the
system can be identified.
Example
DI1 (IO 351-41), [10]:
DI1:
Digital input No 1
(IO 351-41):
IO 351, GENIbus number 41
[10]:
Terminal No 10
For further information on the connection of various digital inputs,
see the wiring diagram supplied with the control cabinet.
Setting range
DI1 (CU 354) cannot be selected.
Setting via operating panel
•
Settings > Secondary functions > Stop function > Digital
inputs.
8.7.27 Functions of digital inputs (4.3.7.1)
Fig. 78 Functions of digital inputs
Description
A function can be related to the digital inputs.
Setting range
You can select one function in each display:
Function
Contact activated
Not used
User-defined duty
External fault
Dry-running protection
Flow switch
Resetting of alarm
Emergency run
Alternative setpoint 2-7
Reduced operation
Stop pump 1-6
See the relevant sections for further information about the
functions.
Generally, a closed contact activates the function selected.
Setting via operating panel
•
Settings > Secondary functions > Digital inputs.
Factory setting
Digital input
Function
External start/stop. Open contact = stop.
DI1 (CU 354) [10]
Note: Input No 1 cannot be changed.
Monitoring of water shortage (dry-running
DI2 (CU 354) [12]
protection). Open contact = water shortage
(if the system is supplied with this option).
Monitoring of water shortage requires a pressure
switch connected to the system.
Operating mode
=
"User-defined"
= External fault
= Water shortage
= Flow
= Alarms are reset
Operating mode
=
"Emergency run"
The setpoint is
=
selected
Activation of
=
"Reduced operation"
Forces the pump to
=
stop
41
Werbung
Kapitel
Inhaltsverzeichnis
