12
Operation
4
4
4.1 Display and input
The display (1), with its extensive text
and graphics mode, is almost self-
explanatory, allowing easy operation
of the controller.
The LED (2) lights up green when a
relay is switched on.
The LED (2) lights up red when
operating mode “Off
”
is set.
The LED (2) flashes slowly red in the
operating mode “Manual
”
.
The LED (2) flashes quickly
red when an error is present.
Entries are made using four keys
(3+4), which are assigned to different
functions depending on the situation.
The “esc
”
key (3) is used to cancel
an entry or to exit a menu. If
applicable there will be a request for
confirmation as to whether the
changes which have been made
should be saved.
The function of each of the other
three keys (4) is shown in the display
line directly above the keys; the right-
hand key is generally has a
confirmation and selection function.
Examples of key functions:
+/-
= enlarge/shrink values
/
= scroll menu down/up
yes/no = approve/reject
Info
= additional information
Back
= to previous screen
ok
= confirm selection
Confirm = confirm setting
Examples of display symbols:
Pump (rotates in operation)
Valve (direction of flow black)
Collector
Storage tank
Temperature sensor
Warning / error message
New information available
Additional heating OFF
Additional heating ON
(1)
(2)
(3)
(4)
Summary of Contents for TDC 2
Page 35: ...35 Notes...
