AUDIOMS AUTOMATIKA SED2 Single Ended to Differential Encoder Interface
FAQ
- Q: How do I power the incremental encoder when connected to the SED2 interface?
- A: The incremental encoder is powered by a 5V power source provided by the DCS-100-A servo driver via the Encoder port on the DCS-100-A servo driver.
- Q: What should I do to reduce electromagnetic interference?
- A: To reduce electromagnetic interference, use shielded cables for the connection between the SED2 encoder interface and the DCS-100-A servo driver. Additionally, keep the cable length as short as possible.
Description
Single-ended to differential encoder interface SED2 (Figure 1.1) is a line driver that converts the single-ended input signals (A, B and Z) from the incremental encoder into differential (complementary) outputs (A+, A-, B+, B-, Z+ and Z-). It is intended for supply voltages of incremental encoders in the range from 5V to 24V, maximum up to 30V (High Transistor Logic – HTL).
The encoder interface SED2 is used for the connection of single-ended (optionally differential) incremental encoders to the Audioms Automatika DC servo driver DCS-3010(-HV) or to the DCS-100-A v.3 servo driver, as well as to systems from other manufacturers that require an encoder interface.
SED2 Encoder interface connection
The single-ended to differential encoder interface SED2 has 2 connectors on it (Figure 2.1):
- Detachable 5-pole connector for connection with incremental encoder (Con.1 – Figure 2.1). Table 2.1 gives the pinout of the connector for connecting the incremental encoder. Pull-up resistors of 4.7 kΩ are placed on inputs A, B and Z, and
- Detachable 8-pin connector (Con.2 – Figure 2.1) on which differential signals from the incremental encoder are available in the form of A+, A-, B+, B-, Z+ and Z-. Table 2.2 provides a description of the pins of this connector.
The encoder interface SED2 has built-in 2 indicator LEDs, red on the side of connector Con.1 and green on the side of connector Con.2 (Figure 2.1).
Table 2.1: Description of the pins of the 5-pin connector (Con.1)
 |
Pin No. | Name | Description | Function |
| 1 | G | GND – Encoder |
Incremental encoder connection |
|
| 2 | Z | Z encoder channel – Input | ||
| 3 | B | B encoder channel – Input | ||
| 4 | A | A encoder channel – Input | ||
| 5 | +V | Encoder power supply |
Table 2.2: Description of the pins of the 8-pin connector (Con.2)
 |
Pin No. | Name | Description | Function |
| 1 | +V | Encoder power supply 5V to 24V |
Output differential encoder signals |
|
| 2 | A+ | A+ encoder channel – Output | ||
| 3 | A- | A- encoder channel – Output | ||
| 4 | B+ | B+ encoder channel – Output | ||
| 5 | B- | B- encoder channel – Output | ||
| 6 | Z+ | Z+ encoder channel – Output | ||
| 7 | Z- | Z- encoder channel – Output | ||
| 8 | GND | GND |
Connecting the encoder interface SED2 to the DCS-100-A servo driver
Figure 2.2 gives an example of connecting a single-ended incremental encoder to a DCS-100-A servo driver via the SED2 encoder interface. The incremental encoder is powered by a 5V power source provided by the DCS-100-A servo driver via the Encoder port (Con.2 on the DCS-100-A servo driver).
NOTE: It is recommended that the length of the cable between the incremental encoder and the SED2 encoder interface be as short as possible.
In order to reduce the impact of high-frequency electromagnetic interference, it is recommended to use a shielded cable for the connection of the SED2 encoder interface with the DCS-100-A servo driver. The encoder connection cable should not be longer than the specific application requires.
Contact
DOCUMENT REVISIONS:
- Ver. 1.0, April 2024, Initial revision
Contact
- Audioms Automatika doo Kragujevac, Serbia
- web: www.audiohms.com
- e-mail: office@audiohms.com
Documents / Resources
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AUDIOMS AUTOMATIKA SED2 Single Ended to Differential Encoder Interface [pdf] User Manual DCS-3010 -HV, DCS-100-A v.3, SED2 Single Ended to Differential Encoder Interface, SED2, SED2 Encoder Interface, Single Ended to Differential Encoder Interface, Differential Encoder Interface, Encoder Interface, Interface |