TMCM-1310 Datasheet, PDF (10/22 Pages) TRINAMIC Motion Control GmbH & Co. KG. – MODULE FOR STEPPER MOTORS

TMCM-1310 V1.2 Hardware Manual (Rev. 1.12 / 2013-JUL-05)
10
3.2.3.2 Encoders with Synchronous Serial Interface
The TMCM-1310 supports encoders with synchronous serial interface (SSI) delivering absolute position
information, too. In this case the encoder connector pin assignment can be switched to its alternate
function as shown in Table 3.6.
Pin Label
Direction
Description
1 GND Power (GND) Signal and system ground
8
2 ^+5V
Power
+5V output for external circuit
(supply output)
3 CS+
Output
Encoder SSI chip select output (differential, non-
inverting)
4 CS-
Output
Encoder SSI chip select output (differential, inverting)
1
5 DATA+ Input
6 DATA- Input
Encoder SSI data input (differential, non-inverting)
Encoder SSI data input (differential, inverting)
7 CLOCK+ Output
Encoder SSI clock output (differential, non-inverting)
8 CLOCK- Output
Encoder SSI clock output (differential, inverting)
Table 3.6 Encoder connector (configuration for encoders with SSI output)
3.2.3.2.1 Differential SSI Encoder Signals
For differential encoder SSI signals please connect all differential signals (DATA+ and DATA-, CLOCK+ and
CLOCK-) to the respective connector input pins. The CS+ and CS- signals are optional depending on
encoder interface. Usually on-board line termination should be also installed for differential signals.
Therefore close all three jumpers for 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.
3.2.3.2.2 Single Ended SSI Encoder Signals
For single ended encoders (TTL or open collector signals) please connect the encoder signals DATA and
CLOCK to the positive / non-inverting differential inputs of the encoder connector DATA+ / CLOCK+. If
available, encoder input signal CS should be connected to CS+.
NECESSARY CONNECTIONS
Encoder connector
Encoder sign. _{Pin Label}
CS
DATA
3 CS+
Encoder chip select output
5 DATA+ Encoder DATA+ input
CLOCK
7 CLOCK+ Encoder CLOCK+ output
Description
Table 3.7 How to connect single ended SSI encoders
Pins CS-, DATA- and CLOCK- of the encoder connector may be left unconnected.
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