SPiiPlus motion control products include High-Speed Synchronous Serial Interface (HSSI) channels. These channels can be used to control distributed axes, support additional digital or analog I/O, or communicate with non-standard devices such as laser interferometer or absolute encoder.

The HSSI channel communicates via common Ethernet-type cable (up to 20 meters) with an external HSSI module that implements the required functionality. The number of HSSI channels is equal to half the number of axes supported by the control product.

The HSSI-ED2 module provides a convenient and cost-effective way to interface the SPiiPlus controller with two distributed axes. The module includes two motor drive interfaces with +/-10V torque command, two 3-channel quadrature (A&B, I) encoder inputs, four limit switch inputs, and eight/eight general-purpose digital I/O.

For example, two of the four axes controlled by a SPiiPlus PCI-4 controller can be connected to one of the controller's HSSI channels via a remote HSSI-ED2 module. The remaining two axes can be connected directly to the controller or via another remote HSSI-ED2 module to the controller's remaining HSSI channel.

The performance of the distributed axes is comparable to that of the axes that are connected directly to the controller. The controller samples the remote encoders and updates the drive commands at a rate of 20kHz, providing high-bandwidth servo control, exceptional dynamic tracking, and fast settling time. Another important advantage of the HSSI-ED2 is that the cabling between the distributed axes and the motion control product is reduced to just the single HSSI cable.

The HSSI-ED2 module monitors the HSSI communication channel and its own integrity. If the integrity check fails, the module automatically disables the drives and turns off all the outputs. The module front panel includes LED indicators for power, communication, drive enable, safety inputs, and each general purpose digital input and output.

The HSSI-ED2 housing is made from durable anodized aluminum with two integrated mounting options:

• DIN Rail - for mounting on industrial DIN rails (standard factory configuration).

• Surface Mount - for surface mounting using metal side brackets.

The HSSI-ED2 module is manufactured under an ISO9001 certified quality management system and meets stringent safety and EMC standards.

FEATURES

• Cost effective way to implement a distributed motion system.

• Easy setup and tuning with the standard SPiiPlus software tools.

• Eight opto-isolated digital inputs with overload protection and eight opto-isolated digital outputs.

• Built-in diagnostics with LED indicators.

• DIN rail or surface mount.

• Easy programming with ACSPL+ and SPiiPlus C++/VB Library.

HOW TO ORDER

Numbers in parentheses refer to the picture above: