DR. JOHANNES HElDENHAlN GmbH
D-8225 Traunreut .Tel. (08669) 31-O
Kundendienst
m) Key
El
"SUPERVISION CIRCUIT TEST"
xx xx xx xx
checks the threshold values of the circuitry which moni-
tors the measuring system inputs.
The contents of the counter status registers for the X,
Y, Z and IV axis are displayed.
n) Key
El
"TEST REFERENCE IMPULSE INPUT"
xx xx xx xx
Checks the effect of a signal applied to the reference-
pulse inputs.
The contents of the counter status registers for the X,
Y, Z, IV axis and handwheel are displayed.
o) Key
IV
0
"TEST TRANSDUCER INPUTS, EXE"
xxxx xxxx xxxx xxxx xxxx
Checks the effect of signals applied to the measuring
system inputs.
The contents of the counter status registers for the X,
Y, Z, IV axes and handwheel are displayed.
Starting the sequential tests
A detected fault will be displayed on the VDU the test cycle
is interrupted and the BURN IN TIME is stopped. With an Over-
fault the LEDs for the following keys:
~~,~~~?~@rii$
following keys: @, @ ,
q
,,
q
With a Battery Trlqqer fault both
flash.
In all other cases several LEDs will flash. Through pressing
the respective key, each individual test can be restarted.
An error message remains memorized until overwritten by a
new1 detected fault. An error message can be called up using
the& andmkeys. Pressing the
q
key erases
the fault
message and restarts the sequential tests.
SERVICE MANUAL TNC 151/155
Page 33
Section 2.2.6
0) KeY n
"SiJPEi?i%ION CIRCUIT TEST"
xx xx xx xx
checks the threshold values of the circuitry which moni-
tors the measuring system inputs.
The contents of the counter status registers for the X,
Y, Z and IV axis are displayed.
PI Key ml
"TESTXFERENCE IMPULSE INPUT"
xx xx xx xx
Checks the effect of a signal applied to the reference-
pulse inputs.
The contents of the counter status registers for the X,
Y, 2 and IV axis are displayed.
q) Key @z
"TEST TRANSDUCER INPUTS, EXE"
xxxx xxxx xxxx xxxx xxxx
Checks the effect of signals applied to the measuring
system inputs.
The contents of the counter status registers for the X,
Y, Z, IV axes and handwheel are displayed.
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