Product Description
Product Details
Manufacturer: Allen-Bradley
Model/Part Number: 1771-OFE1
Description: Analog Output Module
Specifications
|
Attribute |
Value |
|---|---|
|
Outputs per Module |
4 Individually Isolated |
|
Module Location |
Bulletin 1771 I/O Chassis - One Slot |
|
Output Voltage Ranges (Nominal) |
+1 to +5V DC -10 to +10V DC 0 to +10V DC |
|
Output Current (Max) |
10mA per channel in voltage mode |
|
Output Current Ranges (Nominal) |
+4 to +20mA (1771-OFE2) 0 to +50mA (1771-OFE3) |
|
Digital Resolution |
12-bit binary (1 part in 4095) |
|
Output Capacitance |
0.01µF (Voltage Outputs) 0.022µF (Current Outputs) |
|
Output Impedance |
<0.25Ω for voltage outputs (exclusive of contact wiring resistance) >1.5MΩ for current outputs |
|
Max Loop Impedance in Current Mode |
1200Ω (1771-OFE2) 400Ω (1771-OFE3) |
|
Output Overload Protection |
All outputs protected against short circuit load conditions (max 1 min) |
|
Isolation |
1000V RMS between output channels Tested at 1500V (transient) between output circuit and control logic (system side) |
|
D/A Converter Settling Time |
0.8 ms max for resistive load |
|
Internal Scan Rate |
8.0 ms (BCD data and scaling) 1.6 ms (binary data and no scaling) |
|
Accuracy (Including Linearity, Gain, Offset @ 25°C) |
±0.1% of full scale ±1/2 LSD (BCD mode) ±1/2 LSB (Binary mode) |
|
Temperature Coefficient |
±50 ppm/°C of full scale range |
|
Environmental Conditions |
Operating Temp: 0°C to +60°C (32°F to 140°F) Storage Temp: -40°C to +85°C (-40°F to 185°F) Humidity: 5% to 95% (Non-Condensing) |
|
Field Wiring Arm |
Catalog No. 1771-WC |
|
Field Wiring Arm Screw Torque |
7-9 pound-inches (0.6-1.1 Nm) |