Curtis 1239E - Sin;Cos Sensor Device Electrical Specifications; Throttle Type 3; Throttle Type 4; Throttle Type 5

Return to TOC Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
2 — INSTALLATION AND WIRING
pg. 21
Sine/Cosine Signal Tracking
e values of the inputs are tracked to ensure an accurate position can be obtained if the signal
amplitude changes during operation. e amplitude of the signal may alter due to mechanical
tolerances, thermal expansion, magnetic eld strength changes in the actuator magnet etc.
ese signal tolerances must be maintained throughout the application’s operating conditions,
including voltage, temperature, speed and torque ranges.
e Sin/Cos sensor device must be set up with one waveform cycle per mechanical revolution.
Sin/Cos Sensor Device Electrical Specifications
Signal Name Pin
Operating Voltage
Signal Range
Max Input
Frequency
1
Phase
Lag
2
Input
Impedance
ESD
Tolerance
Position Feedback A 31
0-4.5 V (+10% / –0%)
0-2Vp-p with signal
centered at 2.5V
500 Hz
Sinewave
≤6.1° at 800Hz
±0.5° Max
difference between
Sine/Cosine inputs
> 50k Ω
± 8 kV
(direct
strike)
Position Feedback B 32
1
Max input frequency may not exceed max controller electrical fundamental frequency.
2
Maximum phase lag between sensor and actual rotor position.
This is required to maintain proper PMAC rotor alignment at high speed.
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0 50 100 150 200 250 300 350 400
)V( tuptuO
Electrical Degree
Definitions
V
PP
V
Amp
Sin/Cos Max
Sin/Cos Min
V
off