2 — INSTALLATION AND WIRING
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE/38SE Manual, os 31 – May 2017 Return to TOC
pg. 18
Position Feedback Input: Quadrature Encoder
Two control lines are internally congured to read a quadrature type position encoder. e encoder
is typically powered from the 5 V supply (pin 26) or 12 V supply (pin 25), but can be powered from
any external supply (from 5 V up to B+) as long as the logic threshold requirements are met. e
quadrature encoder is used in ACIM applications.
QUADRATURE ENCODER INPUT SPECIFICATIONS
Signal Name Pin Logic Threshold
Input
Impedance
Max.
Frequency
Protected
Voltage
ESD
Tolerance
Position Feedback A 31
Rising edge=
2.9 V max
Falling edge=
2.0 V min
2 kΩ
(internal
pull-up to to
+4.5 V)
10 kHz
–5 V to (MaxV
+ 10 V)
± 8 kV
(direct
strike)
Position Feedback B 32
Phase Shift 90° ±30, Duty Cycle 50% ±10%; no signal edge can be closer than 10 µs to an adjacent edge.
ese signal tolerances must be maintained throughout the application’s operating conditions,
including voltage, temperature, speed and torque ranges.
Channel A
Channel B
360 ° electrical (1 cycle)
>10 μs90° ±30°
180° ±18°
Quick Links:
Figure 3 wiring diagram p.12
To Next Page
Loading...
