TMCM-1310 Datasheet, PDF (9/22 Pages) TRINAMIC Motion Control GmbH & Co. KG. – MODULE FOR STEPPER MOTORS

TMCM-1310 V1.2 Hardware Manual (Rev. 1.12 / 2013-JUL-05)
9
3.2.3 Encoder Connector
An encoder input connector (JST PH series 8pin with 2mm pitch) is available. There are possibilities for
different encoder types. In addition to encoders with incremental A/B/N signals, encoders with
synchronous serial interface (SSI) delivering absolute position information are supported, too.
3.2.3.1 Encoders with Incremental A/B/N Interface Configuration
The following encoders are supported in incremental A/B/N interface configuration:
- encoders with incremental differential (RS422) output signals with or without zero/index channel
- encoders with incremental single ended (TTL or open collector) output signals with or without
zero/index channel
Pin Label
Direction
Description
1 GND Power (GND) Signal and system ground
8
2 +5V
Power
+5V output for external circuit
(supply output)
3 A+
Input
Encoder channel A+ input (differential, non-inverting)
4 A-
Input
Encoder channel A- input (differential, inverting)
5 B+
Input
Encoder channel B+ input (differential, non-inverting)
6 B-
Input
1
7 N+
Input
Encoder channel B- input (differential, inverting)
Encoder zero / index channel input
(differential, non-inverting)
8 N-
Input
Encoder zero / index channel input
(differential, inverting)
Table 3.4 Encoder connector (configuration for encoders with incremental A/B/N output)
For encoders with +5V supply the required +5V output is also available via this connector (max. 100mA
per connector).
3.2.3.1.1 Differential A/B/N Encoder Signals
For differential encoder signals connect all differential signals (A+ and A-, B+ and B- and optional N+ and
N-) to the respective connector input pins. Usually on-board line termination should be also installed for
differential signals. Therefore, close all three jumpers for the 120R line termination of the respective
differential encoder input.
Place jumpers for
proper temrination
Figure 3.3 Encoder input termination
Please refer to the encoder manufacturer data
sheet for the correct interface settings.
3.2.3.1.2 Single Ended A/B/N Encoder Signals
For single ended encoders (TTL or open collector signals) connect the encoder signals A, B and optional
N to the positive / non-inverting differential inputs of the encoder connector A+ / B+ / N+.
NECESSARY CONNECTIONS
Encoder connector
Encoder sign. _{Pin Label}
Description
A
3
A+ Encoder channel A
B
5
N/I (optional) 7
B+ Encoder channel B
N+ Encoder zero / index channel input
Table 3.5 How to connect single ended encoders
The pins A-, B-, and N- of the encoder connector should be left unconnected.
www.trinamic.com