Curtis Instruments AC F4-A User Manual

2 — INSTALLATION AND WIRING
pg. 23
Return to TOC Curtis AC F4-A Motor Controller – August 2020
Use the Sin/Cos sensor in SPMSM (Surface Permanent Magnet Synchronous Motor) applications
1
.
It is not necessarily applicable to the present F4-A release. Contact Curtis if the F4-A application
will use a Sin/Cos sensor.
ese signal tolerances must be maintained throughout the application’s operating conditions,
including voltage, temperature, speed and torque ranges. e Sin/Cos waveform peaks must be away
from Vdd and ground by at least 0.5 V. In the example shown in the timing diagram below, Vdd =
5 Volts. A sensor with high amplitude waveform is preferred.
e Sin/Cos sensor device must be set up with one waveform cycle per mechanical revolution.
Table 13 Sin/Cos Sensor Device Electrical Specifications
Signal Pin
Operating Voltage
Signal Range
Max. Frequency Input Impedance
Sine 31
0 – 5 Volts
0.5 – 4.5 Volts
500 Hz Sinewave > 50k Ω
Cosine 32
VCL Functions VCL Monitor Variables
Motor_RPM
360° mechanical (1 cycle)
V
pp
V
A
V
B
0.5 V
GND
2
2
90°
0.5 V
V
dd
V
dd
V
dd
1
The PMAC motor option is not operational in cdev 2.4.x.x.

Curtis Instruments AC F4-A Specifications

General

Brand	Curtis Instruments
Model	AC F4-A
Category	Controller
Language	English