2: MODULE SPECIFICATIONS
OPENNET CONTROLLER USER’S MANUAL 2-29
Analog Input Module Specifications
Type No. FC3A-AD1261
Quantity of Input Channels 6 channels
Terminal Arrangement See page 2-30.
Input Impedance within Signal Range
Voltage input: 1 MΩ minimum
Current input: 250Ω
Input Error
Maximum Error at 25°C ±0.6% of full scale
Temperature Coefficient ±0.013 %/°C (typical)
Maximum Error over Full
Temperature Range
±1% of full scale
Digital Resolution 4000 increments
Data Type in Application Program 0 to 4000
Digital Output Reading at Overload 4000
Input Mode Selection Using a rotary switch (see page 2-28)
Type of Input Differential input
Common Mode Characteristics Common mode reject ratio (CMRR) –50 dB
Common Mode Voltage 16V DC
Total Input System Transfer Time 3 msec per channel + 1 scan time maximum
Conversion Time 3 msec per channel
Conversion Method ∑∆ type ADC
Maximum Temporary Deviation during
Electrical Noise Tests and Test Conditions
3% maximum of full scale at 500V impulse test
Conversion Type Successive approximation type
Operating Mode Self-scan
Calibration or Verification to Maintain Rated
Accuracy
Impossible
Monotonicity Yes
Crosstalk 2 LSB maximum
Non-lineality 0.1% of full scale maximum
Repeatability after Stabilization Time 0.5% of full scale maximum (more than 30 minutes after powerup)
Sample Duration Time 0.1 msec
Sample Repetition Time 0.5 msec
Input Filter 0.2 msec
Dielectric Strength
500V AC between input channel and power supply under normal operat-
ing conditions
Cable Shielded cable is recommended for improved noise immunity
Effect of Improper Input Connection Permanent damage may be caused
Terminal Block Insertion/Removal Durability 100 times minimum
Internal Current Draw 120 mA (24V DC)
Weight (approx.) 230g
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
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