CT92469A/05
1 in stock
Frequency Input Module
(FIM)
Description
Condition: Overhauled & Tested
Location: UK
Manufacturer: Siemens
Control System: Rustronic Mk2
Warranty: 12 Months
Equivalent part Numbers: CT92469A
Suitable for the engine range: SGT100, SGT200, SGT300, SGT400, LM1600, LM2500, LM5000, LM6000
The Frequency Input Module provides an interface between the control system and four plant frequency signals (e.g. magnetic transducers for shaft speed sensing).
Features
- 4 channels of rapid and accurate frequency measurement.
- Frequency to rpm scaling on board if required.
- Wide input range.
- Signal present and input open circuit detection for each channel.
- Frequency and voltage test outputs for input signal monitoring.
- Card edge lamps for loop power and board healthy indication.
- Inbuilt diagnostic and card watchdog facilities.
- All bus and plant connections via rear of card allowing easy installation.
- Easy connection to DIN rail mounted plant termination modules.
| Plant Inputs | 4 off | |
| Minimum Input | 2 V peak to peak (for inputs > 40Hz) | |
| Maximum Input | +/- 20 V using standard termination module | |
| Maximum Frequency | Teeth/rev × 1000Hz 40kHz |
for Teeth/rev < 41 for Teeth/rev > 40 |
| Accuracy | +/- 0.01% +/- 2 counts | |
| Speed | 10mS (all channels measured simultaneously) (Slower conversion at low speed inputs) |
|
| Board Format | Extended double Eurocard (160 x 220mm) Lower connector for bus interface Upper connector for plant input and output |
|
| Board Pitch | 0.8 Inch centres | |
| Bus Interface | G64 | |
| Power Requirements | +5V +12V -12V |
at 400mA at 12mA at 12mA |
| Temperature | Operating preferred Operating Maximum Storage |
10 to 30 °C 0 to 70 °C -20 to 85 °C |
| Humidity | 10 to 90 RH, non condensing | |
Interface Modules
The DIN rail mounted termination modules provide a simple means of interfacing the rack mounted boards to the plant wiring. They also allow the ‘standard’ interface of the board to be ‘tailored’ to the specific plant requirements.
The interface to the board is via 2 off 14 way ribbon cables, one for the four frequency input channels and one providing frequency and voltage signals proportional to each input for the optional connection of test/monitoring equipment.
The interface to the plant is via screw terminals capable of accommodating 2.5 mm2 wire and also via a test plug in parallel with the screw terminals.
Available interface modules are:-
- Frequency/OS Interface Module (CT93050/01)
- Speed Probe Interface Module (CT94637/01)
- Turbine Frequency Filter Interface Module (CT93750/01)
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