Rockwell Automation CHPS-250 Linear Stage Installation - Manual (Page 45)

Rockwell Automation Publication CHPS-UM001D-EN-P - July 2014 45
Connecting the Stage Chapter 6
Sine/Cos Encoder Output
Signals Use the following information to connect a stage with a Sine/Cosine Encoder
option to a drive or controller that processes sine/cosine position feedback.
The sine/cos encoder amplitude is 0.90V p-p minimum up to 2 meters per
second. 0.60V p-p up to 4 meters per second.
Figure 13 - Sine/Cos Encoder Timing
Recommended termination = 120 Ω resistors, V0, V1, V2.
Figure 14 - Sine/Cos Encoder Termination
(1) Total termination resistance in ohms.
Incremental 2 channels V1 and V2 differential sinusoids in quadrature (90° phase shifted)
Differential pulse V0 - 18°…108°
Duration 126° (electrical) Repeatability of
position (uni-directional) is maintained if
temperature is 15…35 °C and
speed is <250 mm/s
Reference
20 μm
90°
0.6 …1.2V p-p with green
LED indication and
120 Ω termination
108º -18º
0º
Sine = (V1+)-(V1-)
Cosine = (V2+)-(V2-)
0.8…1.2V p-p
(V0+)-(V0-)
Readhead
Drive or
Controller
120 Ω
(1)
ENC A +,
ENC B +,
& Index Mark +
ENC A -,
ENC B -,
& Index Mark -