Connection To A Rs422 Master; Ssi - (Option Sb0 Or Sg0) - ELGO Electronic EMAX2 Series Operation Manual

6.3.3

Connection to a RS422 Master

Colour Function
Green RX
Violet RX-
Yellow TX
Orange TX-
Brown +24VDC
White 0 V (GND)
6.3.4

SSI - (Option SB0 or SG0)

Principle of the function: If the clock is not interrupted for the time Tm-T/2 (output of further 25 periods), the
shift register clocks once again the same data value (error recognition in evaluation).
Some encoders contain a Power Failure Bit (PFB):
With EMAX the PFB is always „low".
Read out of the data (2 times with 25 clocks):
PFB = Power failure bit
T = Cycle duration of clock pulse
Tm = Mono flop time > 15 μ s
By using the decoding switch, which is located behind a protection cap on the top of the sensor, the data
format of the SSI interface can be changed over with the help of a micro screwdriver from Binary code to
Gray code.
Not inverted SSI Clock
LED Gray / Binary code
17
Installation / Commissioning
Position Code
F Binary
0 Gray
Switch position:
0 Gray code
1 Binary code