TMR Digital Input Modules
On TMR Digital Input Modules, all critical signal paths are 100 percent triplicated to guarantee safety and maximum availability. Each channel conditions signals independently and provides isolation between the field and the Tricon controller.
3503E has a self-test feature which verifies the ability of the Tricon controller to detect transitions from a normally energized circuit to the Off state. Because most safety systems use a de-energize-to-trip setting, the ability to detect the Off state is an important feature. To test for stuck-On inputs, a switch within the input circuitry is closed to allow a zero input (Off) to be read by the optical isolation circuitry. The last data reading is frozen in the I/O Processor while the test is running.
3503E Digital Input Specifications
| Feature |
Specification |
| Color code |
Dark red |
| Number of input points |
32, commoned in groups of 8 |
| Input frequency range |
DC or 47-63 Hz |
| Recommended input range |
20–42.5 VDC |
| Maximum voltage |
42.5 VAC/VDC |
| Switching level: Off to On |
15 VAC/VDC typical, 18 VAC/VDC worst-case |
| Switching level: On to Off |
8 VAC/VDC typical, 6 VAC/VDC worst-case |
| Typical hysteresis |
4 VAC/VDC |
| Nominal turn-on |
6 mA to 9 mA |
| Input impedance |
> 1.25 kΩ nominal |
| Input delay: Off to On |
< 8 ms |
| Input delay: On to Off |
< 15 ms |
| Point isolation, opto-isolated |
1000 VAC minimum, 1500 VDC minimum |
| Status indicator: On or Off State |
1 per point |
| Status indicator: Module status |
Pass, Fault, Active |
| Logic power |
< 10 watts |
|
Nominal field power load
|
0.5 watts per On point^1
1.5 watts @ maximum field voltage
|
| Leakage current to chassis @ 60 Hz |
0.25 mA maximum per On point |
|
Input diagnostic fault coverage^2:
Maximum input toggle rate
Minimum input toggle rate, On state
Minimum input toggle rate, Off state
|
Every 100 ms
Not required
Every 3 months (manually toggled by the user)
|
|
Diagnostic glitch duration^3
Output voltage
Output impedance
|
20 ms typical
< 1/2 VIN
< 1.87 kΩ
|
100% brand new and original,All the goods will be tested before shipment.
For the in stock items, we will send the order out within 5-7 days after receive the payment.
Global supplier of quality automation and control components.
Topteng offers a 12-month warranty from the date of delivery.
In the event of non-conforming product ( if damaged or incorrect product is received ),
Any nonconformity must be reported within 7 days of receipt of goods.
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