HEIDENHAIN TNC151B - Page 42

ll~llJENllAlN
DR. JOHANNES HEIDENHAlN GmbH
D-8225 Traunreut ‘Tel. (08669) 31-O
Kundendienst
eg. : "INPUT
01234567890123456789
0
10000000000000000000
00000000000010000000
00000000000000000000
Subsequent pressing of the key
m
SERVICE MANUAL TNC 151/155
Page 32
Section 2.2.6
allows successive outputs (in ascending order) to be driven
high, or in descending order with the key
El
All outputs can be cleared with the key
El
i) Key
q
"EXT. POT, ANALOG OUTPUT TEST"
CONNECTION: ANALOG-OVER EXT.
RELAY ON INPUT EXT. PCT
Five external relays (within the TNC 151/155 A/P Burn-In
Adapter), driven from outputs Al6 - A20, are used to connect
the analogue outputs X, Y, 2, IV, S, in turn, to the ext.
pot. input (see Bum-In Adapters TNC 151/155 A/P). The test
is made at three different voltages: ZOOmV, 5V, 9.5V
-
j)mY L!Ll
"TEST V24-INTERFACE"
k) Key
q
"TEST 3D-SCANNER INTERFACE"
f) Key pfJ
"TEST SERIAL HANDWHEEL INPUT"
Checks the interface to the HE 310 Handwheel Unit
k:
1'
m'
n
To aid in locating an I/O fault, each out ut can be
driven individually. By pressing the key -.
Q (after a short delay) the VDU will display
he input
conditions when only output 0 is being driven high.
eg. :
"INPUT 01234567890123456789
0 10000000000000000000
00000000000010000000
00000000000000000000
AX -- ii, E: ' ' 'By
Subsequent pressing of the key
El
allows successive outputs (in ascending order) to be
driven high, or in descending order with the key
El
All outputs can be cleared with the key
QY pJ
El
"EXT. POT, ANALOG OUTPUT TEST"
CONNECTION: ANALOG-OVER EXT.
RELAY ON INPUT EXT. POT
Five external relays (within the TNC 151/155 A/P Burn-In
Adapter),
driven from outputs Al6 - A20, are used to con-
nect the analogue outputs X, Y, Z, IV, S, in turn, to the
ext. pot. input (see Burn-In Adapters TNC 151/155 A/P).
The test is made at three different voltages: ZOOmV, 5V,
9.5v
Key
"TEST!4-INTERFACE'*
QY El
"TEST 3D-SCANNER INTERFACE"
"TEST SERIAL HANDWHEEL INPUT"
Checks the interface to the HE 310 Handwheel Unit