7.9.3 Absolute Encoder without Sin/Cos signals
Single-turn or Multi-turn absolute encoder with a serial interface without
analog sin/cos signals (Endat 2.2, Biss-B, Biss-C, Tamagawa, Nikon). Digital
position information is transmitted at every position controller cycle digi-
tally coded to the position controller.
NOTICE
RS422 index channel is not available in this configuration.
Pin Layout X20/X21
Pin Name
Encoder
15-pin female
D-Sub socket
female D-Sub socket
1
+5VDC
Encoder Supply
2
n.c.
(do not connect)
3
n.c.
(do not connect)
4
DATA+
Data channel positive, RS-422
5
CLOCK+
Clock channel positive, RS-422 (not used for Nikon and Tamagawa)
6
Gnd
Supply Ground
7
n.c.
(do not connect)
8
n.c.
(do not connect)
9
DATA-
Data channel negative, RS-422
10
CLOCK-
Clock channel negative, RS-422 (not used for Nikon and Tamagawa)
11
EncIn0
TTL Level Input No. 0 (max 5VDC Input)
12
EncIn1
TTL Level Input No. 1 (max 5VDC Input)
13
EncIn2
TTL Level Input No. 2 (max 5VDC Input)
14
EncIn3
TTL Level Input No. 3 (max 5VDC Input)
15
Gnd
Signal Ground
Table 24: Pin out of the encoder connector used for absolute encoders.
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Figure 19: Encoder jacks
(X20,X21).
5
10
15
1
6
11
