HEIDENHAIN iTNC 530 Service Manual page 481

Ribbon cable connector, 50-pin, same assignment as X169.
X69:
NC power supply
and control signals
50-pin
connector
1a to 5b
6a to 7b
8a
8b
9a
9b
10a
10b
11a
11b
12a
12b
13a
13b
14a
14b
15a
15b
16a
Terminal, 2-pin
X74:
5 V supply
Wire color of 5 V connection
Black
Red
July 2010
ribbon Pin layout
+5 V
+12 V
+5 V (low-voltage
separation)
0 V (low-voltage
separation)
+15 V
–15 V
UZAN
0 V
IZAN
0 V
RES.PS
0 V
PF.PS.ZK
GND
ERR.UZ.GR
GND
ERR.IZ.GR
GND
ERR.TMP
50-pin ribbon Pin layout
connector
16b GND
17a RDY.PS
17b GND
18a ERR.ILEAK
18b GND
19a PF.PS.AC (only UV 120,
UV 140, UV 150, UR 2xx)
19b GND
20a Do not assign
20b GND
21a Do not assign
21b GND
22a Do not assign
22b GND
23a Reserved (SDA)
23b GND
24a Reserved (SLC)
24b GND
25a RES.LE
25b GND
5 V terminal on CC 42x (B)
0 V
+5 V
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