Modular signal conditioning kit ENA-SCM-01A
Characteristics:
ENA-SCM-01A, signal conditioning kit, is a modular signal conditioning system for voltages, currents and digital inputs. ENA-SCM-01A provides attenuation, isolation (4.2kV) and anti-aliasing filters for instant AC voltage and current input signals. Anti-aliasing filters cut-off frequency is programmable from 3.2kHz up to 12.8kHz. Signal levels of conditioned signals are ready for a direct connection to National Instruments M series data acquisition boards.
Input ranges of ENA-SCM-01A are designed for signals from voltage transformers. ENA-SCM-01A can be extended by up to 64 digital inputs/outputs for 24V level digital signals. Conditioned signals are connected to an internal signal bus. The interface module is a bridge between internal bus and 68-pins connector for an easy direct connection to National Instruments data acquisition boards.
Typical ENA-SCM-01A set consists:
- 1 digital input/output module EDIOM01 with 24V logic. Module contains 4 isolated digital inputs and 4 isolated digital outputs with LED state indication.
- 1 power supply module EPM01 with 24V input.
- 2 analog voltage inputs modules EVM01 (4xU to 250V RMS). One module contain two isolated inputs (A and B) and filters.
- 2 analog current inputs modules ECM01 (4xI to 6A RMS). One module contain two isolated inputs (A and B) and filters.
- 1 interface module EIM01 witch provide interface to data acquisition cards M (E) series.
The ENA-SCM-01A mounts directly on a 35mm DIN rail (DIN EN 50022). Socket material is Polyamide PA 6.6 according to standard UL 94 VO. Input/output nodes use screw terminals.
Technical Specification:
Analog inputs
| Number of inputs for one module | 2 (optionaly 1) |
| Max. number of modules in kit | 16 |
| Input quantity | AC voltage, AC current |
| Frequency range | 45Hz up to 3200Hz(6400Hz, 12800Hz) |
| Output quantity | instant AC voltage |
| Nominal output Voltage | 7V RMS |
| Output resistance | 50 Ohm |
| Accuracy | +/-0.1% for nominal range |
| Total harmonical distortion | <0.05% |
| Temperature drift | -0.007%/K |
| Temperature settling time | 15min |
| Isolation voltage (input/output), (input/input) | 4.2kV |
| Overloading category | CAT II |
| Safety | CAT II |
| Pollution | 2 |
Digital inputs
| Number of inputs per module | 4/4 (optionaly 8/0 or 0/8) |
| Max. number of modules in kit | 32 |
| Input/Output quantity | AC or DC voltage 0/24V |
| Input resistance | 6kOhm |
| Input voltage for log.0 | 0 up to 4V |
| Input voltage for log.1 | 15 up to 24V |
| Current output overloading | 100mA permanently |
| Max. current output overloading | 300mA for 50us |
| Max. input/output voltage | 36V |
| Settling time | 20us |
| Isolation voltage (input/output) | 1500V |
General
| Power supply (isolated from inputs/ouputs) | 18 up to 36V DC |
| Consumption | max. 30VA |
| Coverage | IP20 |
| Connection conductor | <2.5mm2 |
| Operating temperature | -20 up to +50°C |
| Storage temperature | -25 up to +65°C |
| Humidity | <75%, non condensing |
| Climatic properties | Climatic rank 3 VDE/VDI 3540 |
| Size of kit (h x w x d): n=number of modules in kit | 105 x (n x 17.5) x 115mm |
| Weight of kit | number of modules x 0.15kg |
| Fixation | 35 mm DIN rail mounting |
Standards
| Safety | EN 60950 |
| EMC | EN 61000-6-2, EN 61000-4-2, 3, 4, 5, 6 |
Accessories
| Bus cable | NI SH68F/68F – 1 m, HA SH68F/68F –2 m, HA SH68F/68F –1 m |