5. Operation
104781 - MRF-2 | MRH-2 - V2.4 - 22.07.2020
Page 21
5.3 Controls / Displays
5.3.1 Meaning of LED’s
5.3.2 Button functions (Working level)
1
SET button
=
STANDARD
To display or change the target temperature settings using the up and down
arrow buttons.
EXTENDED
WORKING LEVEL
Adjustment of function see d-parameters.
Depending on the setting of the plant engineering further parameters of
the programming level can be displayed or changed here.
Function
- Push SET button for 3 seconds until [C1] appears on the display.
- Release SET button and select desired parameters with arrow buttons.
- Press SET button - the set value is displayed and can be changed by u-
sing the arrow keys.
- If no key is pressed for more than 1 minute, the controller switches back
- to the working level. Modified values will be saved.
2
I/O
Controller on/off
3
Down arrow
button on its
own
Display measured sensor temperature 1 - 3 or analogue input value
(determined in [H97]
Together with SET button
reduce current target temperature C1
4
Up arrow
button on its own as above - determined in [H98]
Together with SET button
increase current target temperature C1
1
2
4
3
LEDdisplay
In [C97] defines which input is dis-
played in the working level.
LED’s 1 - 4
indicate the switching sta-
tus of Relays 1 - 4
(if available)
LED’s F1 - F5
indicate the switching sta-
tus of the digital inputs.
