WCS* Read Head Position Encoding System
SSI Interface (LS3xx*)
2020-01
37
5.5 LED Status Indication
WCS3B-LS3xx*
1 Green LED
2 Yellow LED
3 Red LED
Display Meaning
Operating indicator Green LED: Power on
Data flow indicator
1
1. Only for read heads with no velocity output
Yellow LED: Data transfer active
Velocity display
2
2. Only for read heads with velocity output
Yellow LED
Off if limit speed exceeded
Fault indicator Red LED
Flashing: Read head outside the code rail
Permanently lit: Internal diagnostic error
Contamination indicator Yellow LED and red LED flashing alternately: Read
head lens dirty (f=1.5 Hz)
Function indicator Yellow LED and red LED light up for 2 seconds after
power on or reset