5. Operation
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104781 - MRF-2 | MRH-2 - V2.4 - 22.07.2020
5.7.1 Operation of parameter levels
1
2
3
4
°C
Password protection:
If instead of P1 only three zeros (000)
appear in the display, it means that the
plant engineering company has protec-
ted against access to the next parame-
ter level by means of a password.
To enter password: (the first zero blinks)
•
Use the arrow buttons to enter the first character of the password.
•
Press SET - the second zero blinks
•
Use the arrow buttons to enter the second character of the password.
•
Press SET - the third zero blinks.
•
Enter the third character.
•
Confirm with SET. The first parameter of the next level appears.
5.7.2 Changing and storing parameters
Change parameters:
Select parameter (on pressing the SET button the value
currently set is displayed).
Hold the SET button down throughout the operation to
change the parameter.
Use the UP or DOWN arrow button to set the required
value. (NB: if you hold down the UP or DOWN button
longer, the value changes more quickly).
Release the SET button.
In order to store the value in the memory, first release the
arrow button and then the "SET" button.
Store parameters:
Press and hold down the UP
and DOWN buttons simultane-
ously for 5 seconds. All para-
meters are thus stored and the
controller switches back to the
working level.
At every change of level the
parameters that have been
changed are also stored.
Discard parameters:
Time-out: if one minute
passes without any buttons
being pressed, the control-
ler automatically switches
back to the working level
and all changes are dis-
carded
Configuration
+ option level
Hardware
configuration
Programming
level
Working level
3 sec.
NB:
If you use the down ar-
row to return to the C le-
vel, you can simply use
the up arrow to return to
the top step without ha-
ving to put in the level
code again.
5 sec.
When C99 or H99 reaches:
- Release up arrow
- Press up arrow for 3 seconds
- PA appears in the display
- While holding down the up arrow,
press the down arrow.
3 sec.
3 sec.
3 sec.
Level
code
