Table of Contents
Advertisement
Kundendienst
SERVICE MANUAL TNC 151/155
PZiTe
18
Section
2.2.6
2.2.6
Burn-In
Test
In some case.?., inspite
of there
being definite
fault
condi-
tions
on the control,
error
messages may not be displayed
on
the VDU. However,
the Control's
electronics
can be tested
with
the help of the Burn-In
test
program.
This test
program
is a means of dynamically
testing
the
Control's
hardware
and can be used not only for duration
testing
but also for
fault
diagnosis.
The test
program
is stored
on a digital
cassette
and can be
loaded
into
the Control
via magnetic
tape units
ME 101 B/
102
B or MB 101 C/102 C (Program versions
212 902 05/
212 902 09). The test
program
cannot be loaded
into
the
Control
if
the flashing
error
message: "TNC ELECTRONICS
DEFECTIVE ." is present
on the VDU. In this
case, the
faulty
board must be determined
by exchanging
each board
in turn
until
the fault
is eliminated.
However,
before
exchanging
any board,
it
is advisable
to check the output
voltage
from the Power Supply Unit
(see section
2.2.4).
TO run the Burn-In
test
program
it
is necessary
to have a
set of Burn-In
Test Adapters.
Figs.
2 to 4.1 show pictorial
and schematic
representations
of each individual
adapter.
Depending
on the type of Control,
(TNC with
either
a standard
SE interface
or with
an external
PLC I/O Board)
the appro-
priate
adapters
must be connected
as shown in fig.
1.
It is important
to have the correct
test
program
for
the
type of Control
and for
the Control's
current
NC Software
issue.
The test
programs
are listed
on page
20.
The type Of
Control
can be determined
from the identification
number of
the unit;
the issue of the NC Software
can be determined
form
the NC Software
issue number. Both these numbers are found on
the type-plate
on the rear of the Control.
Hide quick links:
Advertisement
Table of Contents
