Description
Technical Parameters
Product Introduction
TRICONEX 3664 digital output module has 32 shared digital output channels and can control multiple external devices at the same time. The module adopts a triple modular redundant architecture. Each module has three independent processing channels. The final output is determined by an internal voting mechanism, which improves the fault tolerance and reliability of the system. Even if one of the channels fails, the system can still operate normally.
Technical Specifications
|
Brand |
TRICONEX |
|
Model |
3664 |
|
Part Number |
3664 |
|
Description |
TMR Dual Digital Output (DDO) modules
|
|
Origin |
USA |
|
Dimension |
50*48*8cm |
|
Weight |
4.58kg |
Product Details
TRICONEX 3664 Dual Digital Output (DDO) modules receive output signals from the Main Processors along a single parallel or series path, and applies a 2-out-of-3 voting process individually to each switch. The switches produce one output signal which is then passed to the field termination. While the quadruplicated output circuitry on TMR modules provides multiple redundancy for all critical signal paths, dual circuitry provides just enough redundancy to ensure safe operation. DDO modules are optimized for those safetycritical control programs where low cost is more important than maximum availability.
DDO modules have a voltage-loopback circuit which verifies the operation of each output switch independently of the presence of a load and determines whether latent faults exist. Failure of the detected field voltage to match the commanded state of the output point activates the LOAD/FUSE alarm indicator.
In addition, ongoing diagnostics are performed on each channel and circuit of a DDO module. Failure of any diagnostic on any channel activates the
Fault indicator, which in turn activates the chassis alarm signal. A dual module operates properly in the presence of most single faults and may operate properly with some kinds of multiple faults, but stuck-Off faults are an exception. If one of the output switches has a stuck-Off fault, the output goes to the Off state and a glitch may occur during switch-over to a hot-spare module.
Dual Digital Output Module Specifications：
|
Model Number
|
3664/3674
|
|
Nominal Voltage
|
24 VDC
|
|
Type
|
Dual DO, serial (recommended for de-energize-to-trip control programs)
|
|
Output Signals
|
32, commoned
|
|
Voltage Range
|
16-30 VDC
|
|
Maximum Voltage
|
36 VDC
|
|
Voltage Drop
|
< 1.5 VDC, typical
|
|
Power Module Load
|
< 10 watts
|
|
Current Ratings, Maximum
|
2A per point
10A surge per 10 ms
|
|
Load Leakage
|
2 mA maximum
|
|
Fuses (on Field Termination)
|
n/a-self-protecting
|
|
Point Isolation
|
1,500 VDC minimum
|
|
Load Alarm, output stuck-On
|
3664 - Stuck-On point, all others commanded state - On or Off
3674 - Stuck-On point, all others commanded Off (de-energized)
|
|
Load Alarm, output stuck-Off
|
3664 and 3674 - Stuck-Off point, all others commanded state - On or Off
|
If you have any order needs, please feel free to contact our sales manager:
