Operating Modes; Programming Mode - IFM Electronic SU0502 Bedienungsanleitung

Operating modes

Run mode
Display mode

Programming mode

Page 20
Normal operating mode
With power on and the power-on delay time elapsed* (approx. 10 s)
the unit is in the Run mode. It monitors and generates output signals
according to the set parameters.
The display indicates the current flow (can be deactivated, → page 25).
The yellow LEDs indicate the switching state of the outputs.
*During the power-on delay time the most important parameter
values are displayed briefly, then the current measured value is indica-
ted. Even if the display is deactivated (diS = OFF), the most important
parameter values are indicated, then the current measured value is
indicated for 15 s, then the display goes out.
Both outputs are switched according to the programming: ON with the
NO function (Hno/Fno) and OFF with the NC function (Hnc/Fnc).
Note: When the hysteresis function is active, the outputs remain in this
switching state after the power-on delay time has elapsed if the flow
is between SPx and rPx.
If output 2 is configured as analog output, the output signal is 20 mA
or 10 V.
Indication of parameters and the set parameter values
When the "Mode/Enter" button is pressed briefly, the unit passes to
the Display mode which allows parameter values to be read. The inter-
nal sensing, processing and output functions of the unit continue as if
in Run mode.
• The parameter names are scrolled with each pressing of the
"Mode/Enter" button.
• When the "Set" button is pressed briefly, the corresponding para-
meter value is displayed for 15 s. After another 15 s the unit returns
to the Run mode.
Setting of the parameter values
While viewing a parameter value pressing the "Set" button for more
than 5 s causes the unit to enter the programming mode. You can alter
the parameter value by pressing the "Set" button and confirm the new
value by pressing the "Mode/Enter" button. The internal sensing, pro-
cessing and output functions of the unit continue as if in Run mode
with the original parameter values unless a new value is confirmed.
The unit returns to the Run mode when no button has been pressed
for 15 s.