MA55 Datum 30.03.2005 Art.Nr. 81540 Änd.Stand 100/05 9
9. Input mode
Reset function (to reference value)
•Press key to set the display to the reference
value.
Precondition: in programming mode menu point
(SEt_F) must be programmed as 'Ein'. Display MA55
must not be in programming mode (see chapter 7
'To leave programming mode').
Incremental measurement function
For switching on, press the two arrow-keys +
simultaneously.
•Display is zeroed.
•Decimal point is blinking.
•Leave incremental measurement function by
another press of the keys + ; now the absolute
measuring value is displayed again.
Precondition: in programming mode menu point
(rEL_F) must be programmed as 'Ein'. Display MA55
must not be in programming mode (see chapter 7
'To leave programming mode').
Reference value modification
Press the two keys + simultaneously to enter
a new value.
The display shows the reference value, which can be
changed via the two arrow keys.
Press key to store the new value.
If no key has been pressed for approx. 30 s or if you
press again key , MA55 will return to display
mode.
Precondition: Parameter 'reference value input
enable' (rEF_F) respectively must be programmed to
"Ein" in programming mode. Display MA55 must not
be in programming mode (see chapter 7 'To leave
programming mode').
10. Referencing
The display must always be referenced:
•before the first use of the measuring system.
•in case of a displacement during power failure.
During reference the counter is set to the program-
med reference value. The display can thus be
zeroed, if reference value were previously program-
med to 0.
10.1 Manual referencing
Manual reference can either be made by:
•or by pressing key .
Display Designation / description
"choice"
_APU_ Display after 1 revolution: Value by
which the display increases/decreases
after 1 revolution of the encoder.
Value range: 0 ... 59 999
_Str_ Encoder pulses per revolution
Value range: 0 ... 59 999
_dP_ Positions after the comma: Determina-
tion of the decimal point position.
Value range: 0. bis 0.000
_drEh Counting direction: Counting direc-
tion of the system.
"I" clockwise increasing values
"E" anti-clockwise increasing values
_Ind_ Reference mark on the encoder disk;
appears only once per revolution.
Used for clear reference point marking.
"0" Signal shape '0'; square signal with po-
sitive logic.
"I" Signal shape 'I'; square signal with in-
verted logic.
_rFS_ Reference switch type
"Auto" Automatic referencing when reference
switch and the encoder's index signal
are active (see Kap.10).
"HAnd" Display unit can be referenced at any
position by activating input RFS
(ground switching).
_rEF_ Reference value: can be any value; va-
lue to which the display is reset after
referencing.
Value range: -99 999 ... +99 999
rEL_F Access incremental measuement: To
switch from absolute measurement and
zero-zetting to relative measurement.
"EIn" Incremental measuement on
"AUS" Incremental measuement off
rEF_F Access reference value input enable:
To enter/change reference value (in
input mode).
"EIn" Reference value unlocked
"AUS" Reference value locked
SEt_F Access reset: Press key to set the
display to the reference value (in in-
put mode).
"EIn" Reset function unlocked
"AUS" Reset function locked
Cntr Control: for service only
