Triconex 3700 Series Analog Input Modules Instructions
Ana log Input Modules
Ana log Input (AI) Modules includes three independent input channels. Each input channel receives variable voltage signals from each point, converts them to digital values, and transmits the values to the three Main Processor modules on demand. In TMR mode, one value is then selected using a mid value selection algorithm to ensure correct data for every scan.
Sensing of each input point is performed in a manner that prevents a single failure on one channel from effecting another channel. Each Ana log Input Module sustains complete, ongoing diagnostics for each channel.
Failure of any diagnostic on any channel activates the Fault indicator for the module, which in turn activates the chassis alarm signal. The module’s Fault indicator merely reports a channel fault, not a module failure—the module can operate properly with as many as two faulty channels.
Ana log Input Modules support hot spare capability, which allows online replacement of a faulty module.
Analog Input Modules require a separate external termination panel (ETP) with a cable interface to the Triton back plane. Each module is mechanically keyed for proper installation in a Triton chassis.
Analog Input Module Specifications
| Model Number | 3700/3700A | 3701 | 3703E |
| Voltage | 0-5V, + 6% (only 3700A) | 0-10V | 0-5V or 0-10V1, + 6% |
| Type | TMR, AI | TMR, AI | TMR, AI |
| No. of Input Points | 32, diff, DC coupled | 32, diff, DC coupled | 16, diff, isolated |
| Isolated Points | No | No | Yes |
| Input Update Rate | 55 ms | 55 ms | 50 ms |
| Resolution | 12 bits | 12 bits | 12 bits |
| Accuracy | < .15% of FSR,from 0° to 60°C | < .15% of FSR,from 0° to 60°C | < .15% of FSR,from 0° to 60°C |
| Input Resistance (load) | 30 MW (DC), min. | 30 MW (DC), min. | 30 MW (DC), min. |
| Power-Off Resistance | 30 KW (DC), typical | 30 KW (DC), typical | 30 MW (DC), min. |
| Common Mode Rejection | -80 dB (DC-100Hz),typical | -80 dB (DC-100Hz),typical | -90 dB @ 60Hz, min.-100 dB @ DC, min. |
| Common Mode Range | -12V to +12V peak | -12V to +12V peak | +200V peak |
| Leg-to-Leg Isolation | 200 KW, typical | 200 KW, typical | 20 KW, typical |
| Normal Mode Rejection | |||
| @ 8Hz | -3 dB | -3 dB | -3 dB |
| @ 60Hz | -17 dB | -17 dB | -17 dB |
| @ 120Hz | -23 dB | -23 dB | -23 dB |
| Input Over range | 150 VDC/115 VAC | 150 VDC/115 VAC | 150 VDC/115 VAC |
| Protection | continuous | continuous | continuous |
| Current Range | 0-20 mA, | 0-20 mA, | 0-20 mA, |
| 250 W shunt | 500 W shunt | 250 W shunt for 5V 500 W shunt for 10V | |
| Diagnostic Indicators | |||
| Module Status | Pass, Fault, Active | Pass, Fault, Active | Pass, Fault, Active |
| Color Code | Yellow | Light yellow | Mustard yellow |
- The voltage is selected using TriStation 1131.
Documents / Resources
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Triconex 3700 Series Analog Input Modules [pdf] Instructions 3700-3700A, 3701, 3703E, 3700 Series Analog Input Modules, 3700 Series, Analog Input Modules, Input Modules, Modules |
