Weidmuller AMS400A - Universal interface device - Handbuch (Seite 35)


•DigitaltoAnalogue(“dA”)configuration
General
The AMS400A accepts digital, increment and decrement signals from
the controlling device. In automatic mode, the analogue output (to the
control device) changes in response to pulses on these two lines. In
manual mode, the operator adjusts the output using the front panel
keypad and the automatic “signals” are ignored.
Display
The display provides feedback using an analogue signal from the
control element or from a suitable measuring device. For example, if
you are controlling a valve, you will probably want to display the flow
rate.
You can also display the output signal level (in percent) by pressing the
AUTO or MAN key.
StatusOutputs
There is a digital ‘status’ output to the controlling device to signal the
operating mode of the AMS400A, i.e., automatic or manual.
Configurationspecificsettings
Setting Display Description Е м ENT
Manual Ramp
Rate
rr1=
10.0
Introduces the manual ramp rate
Rate at which output can be manually adjusted -
Dec
-
Inc
Next
Accept
Automatic
Ramp Rate
rr2=
1.0
Introduces Automatic ramp rate
Ramp rate for automatic mode, e.g., 1.0 % -
Dec
-
Inc
Next
Accept
Power Up mode
SUPA
SUPn
Starts up in Automatic Mode
Starts up in Manual Mode
Toggle Accept
SUO=
50.0
Introduces start-up output
Output at power-up (in display units) -
Dec
-
Inc
Next
Accept