1 nc power supply: block diagram, Voltage table, V] u – HEIDENHAIN TNC 415 (259 9x0) Service Manual User Manual
Page 57: V] i, 5v * 1, Potential-free voltage, Reset u, 4 v, u
SERVICE MANUAL TNC 415B/425
Page 54
Issue: 20.08.95
10.2.1 NC Power Supply: Block Diagram
VDE 0551
+24V
0V
X31
power
supply,
housing
+
-
wh/bl
bk
F 4.0A
F 2.5A
+12V
1
2
+24V
BE
12V
BE
24V
-15V
+15V
+5V
+5V *1
0V *1
RES
X2
-12V
-15V
+12V
+15V
battery 3 x 1.5 V
1k
3
bk
4
re
power supply board
LH5
LH7
LH13
LH15
LH17
LH19
LH21
LH11
LH23
LH9
LH4
LH2
LH6
LH8
LH14
LH16
LH18
LH20
LH22
LH24
LH12
LH1
LH10
LH3
X1
wh/bk
wh/br
gr
gn
br
re
re/bl
re/bk
br/gn
bk
pi
11
12
9
9
6
6
3
3
4
4
1
1
12
12
7
7
5
5
8
8
X2: connector (12-pin) of connecting cable "power supply <-> processor board"
X1: socket (12-pin) on processor board
Voltage Table
Test point on
power supply
board
Reference point
on power
supply board
Output
U
NOM
[V]
U
MIN
[V]
U
MAX
[V]
I
NOM
[A]
LH22
LH20
LH18
LH14
LH10
LH1
LH12 (reset)
2)
LH24 (0V)
LH24 (0V)
LH24 (0V)
LH24 (0V)
LH24 (0V)
LH3 (0V*1)
+ 5V (UP)
+ 12V
+ 15V
- 15V
+ U
BATT
+ 5V * 1
1)
+ 5.05
+ 12
+ 15.0
- 15.0
+ 4.5
+ 5
+ 5.00
+ 11.4
+ 14.4
- 14.4
+ 3.9
+ 4.75
+ 5.10
+ 12.6
+ 15.6
- 15.6
-
+ 5.25
2.5
0.1
0.15
0.08
approx. 20 µA
0.3
1)
potential-free voltage
2)
reset U
Lmax
= 0.4 V, U
Hmin
= 3.9 V
10