Wiring - Renishaw TB20 Manual

System Configuration
Data Analysis Diagnostics
Appendix A –

Wiring

The connector pin-outs for the TB20 encoder and controller ports are shown below:
Controller
15 Way D-Type
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Shell
* Spare signals are routed straight through and fused at 160 mA via self resetting thermal fuses.
** Connect 5 V to 5 V link and 0 V to 0 V link at the encoder if a sensed supply is used. The power supply should always be connected to the 5 V and 0 V ports. The TB20 can handle up to 0.5 V drop
on both supply and return lines i.e. 5 V ±0.5 V maximum. The controller supply should be limited to a maximum output of 6.5 V. Voltage transients above this could cause permanent damage to the
encoder. It is recommended that the encoder is never hot-swapped without removing the power from the TB20. Alternatively, if an unsensed supply is used, connect 0 V to 0 V link at the TB20.
28 TB20 quadrature trigger box
Data Capture
Specifications
Encoder
15 Way D-Type
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Shell
Description
Spare*
0 V
Spare*
Spare*
B-
A-
5 V
5 V link**
0 V link**
Spare*
Spare*
Spare*
B+
A+
Spare*
Outer screen – connect to machine earth
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