Lenze EPM−T9XX Modular system - Manual (Page 103)

SSI interface
4
The modular system
4.22
L
4.22−1 EDSPM−TXXX−9.0−11/2009
4.22 SSI interface
An SSI interface (Synchronous Serial Interface) is a synchronously pulsed, serial
interface.
The SSI interface module permits the connection of absolutely coded sensors with
SSI interfaces. The module converts the serial information of the sensor into
parallel information and makes it available to the control.
)
Note!
l Use sensors with a binary data format. The module only
evaluates binary data.
l The chapter "Parameter setting" describes how to parameterise
the module.
l 1 SSI channel
l Data transmission in the Gray code or binary code (safe data collection by
using the Gray code)
l Adjustable baud rate of 100 ... 600 kbits/s
l Maximum data integrity by using symmetrical clock and data signals
l Isolation from receiver and encoder by optocoupler
l Two parameterisable digital outputs, one of which parameterisable as hold
input to "freeze" the current SSI encoder value
l Integrated power supply unit of the interface electronics and the connected
sensor
l LED shows the status
0
1
2
epm−t015
Fig. 4.22−1 Overview of SSI interface
0 LED for status display
1
Bit address label card
2 Plug−in terminal strip
Description
Features
Overview