HEIDENHAIN ND 231 B v.2 User Manual

Page 7

Switch-On, Traversing the Reference Marks

REF Mode

Crossing over the reference marks automatically switches the
display to REF mode: The last assignment of display values to
length gauge positions is stored in nonvolatile memory.

Press the CL key if you choose

not to cross over the

reference marks. Note that, in this case, the relationship
between length gauge position and display value will be lost if
the power is interrupted or if the unit is switched off.

Turn on the power.
(Switch is located on rear panel).
• Unit displays ND 231 B

for 2 seconds.

• Unit displays ENT...CL

• REF indicator starts blinking.

Switch on the reference mark evaluation

function.
• The position value that was last

assigned to the reference mark
position is displayed.

• REF indicator lights.
• Decimal points start blinking.

Traverse the reference marks.
Move the plunger until the display starts
counting and the decimal points stop blink-
ing. The display is now ready for operation.

5 , 6 9 7

ENT...CL

For automation purposes, crossing over the reference marks
and the display ENT ... CL can be disabled with parameter P82.

Switch-On,

Traversing

the

eference

Marks