Installation and Configuration
Nmark SSaM Hardware Manual
2.10. Encoder Interface (TB108)
The Nmark SSaM is equipped with two auxiliary encoder input channels that are accessible through
TB108A/B. The encoder interfaces accept an RS-422 differential line driver.
Table 2-31:
Encoder Input Specifications (TB108)
Specification
Value
Encoder Frequency
10 MHz maximum (25 nsec minimum edge separation)
x4 Quadrature Decoding
40 million counts/sec
Table 2-32:
Axis 1 Encoder Interface Pinout (TB108A)
Pin
Label Description
In/Out/Bi
1
+5V
+5V Encoder Power
Output
2
Ground
N/A
3
SIN+
Encoder SIN+ Input
Input
4
SIN-
Encoder SIN- Input
Input
5
COS+ Encoder COS+ Input
Input
6
COS-
Encoder COS- Input
Input
7
MRK+ Encoder MRK+ Input
Input
8
MRK-
Encoder MRK- Input
Input
Table 2-33:
Axis 2 Encoder Interface Pinout (TB108B)
Pin
Label Description
In/Out/Bi
1
+5V
+5V Encoder Power
Output
2
Ground
N/A
3
SIN+
Encoder SIN+ Input
Input
4
SIN-
Encoder SIN- Input
Input
5
COS+ Encoder COS+ Input
Input
6
COS-
Encoder COS- Input
Input
7
MRK+ Encoder MRK+ Input
Input
8
MRK-
Encoder MRK- Input
Input
Table 2-34:
Mating Connector Part Numbers for the Encoder Connector (TB108 A/B)
Mating Connector
Aerotech P/N
Phoenix P/N
Wire Size: mm
2
[AWG]
8-Pin Terminal Block
ECK01386
1881383
0.5 - 0.080 [20-28]
Table 2-35:
Nmark SSaM to Drive Cable Part Numbers
Drive Type
Cable P/N
Ndrive CP, HPe, or HLe
C23161-xx
Ndrive MP, ML
C23940-xx
Npaq
C23320-xx
42
Chapter 2
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