HEIDENHAIN TNC 150 B Mounting Instructions page 23

3.8 External direction buttons and external feed rate potentiometer 1
Inputs
PLC-Allocation TNC 150 I3 TNC 150 Q
TNC 150 Q
Multiipoint Multipoint
Multipoint
connector 1 connector connector
PLC-Power board control
X + direction E9 J6/5
J4/3
-
x- "
El0 J6/6 J4/2
-
Y + "
El1 J6/7
J5/12
-
y- "
El2 J6/8, J5/11
-
z + "
El3 J6/91 J5/10
-
z - "
El4 J6/10
J5/9
-
IV + " El5 J6/11 J5/8
-
IV - " El6 J6/12 J5/7
-
ext. Potentiometer + 12 V
-
,, ,,
brush-contact -
,I ,I
ov
-
J 316
-
J3/2
J3/8
-
J3/3
J3/9
-
J3/4
By applying the 24 volt control voltage via an external direction button, the relevant machine axis can be
traversed in the modes:
MANUAL OPERATION, ELECTRONIC HANDWHEEL
and
PROGRAMMING AND EDITING.
The max. speed for each axis is programmed separately via machine
parameters 4 to '7.
A feed rate display F is provided in the display screen. This display operates in acoordance with machine para-
meter 167 either after the start of one axis via display or with the same max. feed rate in all axes prior to start.
Caution:
With F-display prior to start, the control sets the smallest programmed speed in MP4 to MP7 for all axes.
With a further machine parameter MP66, the input of another existing external feed rate potentiometer can be
activated. If no external feed rate potentiometer is used, the feed rate for the direction buttons can be set via
the override potentiometer. The rapid traverse button is active with one or several direction buttons.
If the external
0
START
-button is pressed while one or more airection buttons are held depressed, the traversing
directions are memorised depending on the programming of machine parameter MP 68. This motion can be
stopped via the external
0
STOP
-button.
3.9 Control "in operation"
During control operation, the contact is closed in modes
POSITIONING MANUAL DATA INPUT, PROGRAM RUN SINGLE BLOCK and
PROGRAM RUN FULLSEQUENCE.
23