Advanced Features
• The DRST-FR signal converter can be configured with OMSET software in a standard PC and the TXUN-KIT communications unit.
Application
• The f/I function performs frequency to current and voltage conversion.
• The f/f function can be used for pulse division or multiplication and as a buffer collecting fast pulse trains.
• A scale factor may be entered in all functions. Using both digital inputs, pulse addition or subtraction are possible.
• The frequency generator function is used as e.g. a time base or clock generator.
• Input and supply polarity reversal protection. Current and voltage output signals galvanically separated from the supply and the inputs.
• Programmable digital outputs including NPN, PNP or relay options.
Technical Characteristics
• 5 front LEDs, indicating f1 and f2 active inputs (not NPN), Dig.out.1 and 2 active outputs, and a programmable error signal.
• Analog current output can be configured to any current within 0 to 20 mA range.
• Voltage output range is selectable between 0 to 10 Vdc and 0 to 1 Vdc by use of internal jumpers.
• Input range: Frequency: 0 to 20,000 Hz Sensor types: NAMUR, tacho, NPN, PNP, TTL, S0
• Output range: Current and voltage output: 0 to 20 mA / 0...10 V Relay outputs: 0 to 20 Hz NPN and PNP output as f/f: 0 to 1000 Hz NPN and PNP output as generator: 0 to 20,000 Hz
• Configurable with a standard PC and TXUN-KIT communications unit
• Pulse Calculator
• Frequency Generator
• Galvanic Isolation
| Environmental Conditions | |
| Operating Temperature | -20 to 60°C |
| Calibration Temperature | 20 to 28°C |
| Relative Humidity | < 95% RH (non-cond.) |
| Protection Degree | IP20 |
| Mechanical Specifications | |
| Dimensions (HxWxD) | 109 x 23.5 x 130 mm |
| Weight Approx | 240 g |
| DIN Rail Type | DIN 46277 |
| Wire Size | 1 x 2.5 mm2 stranded wire |
| Screw Terminal Torque | 0.5 Nm |
| Common Specifications | |
| Supply | |
| Supply Voltage, Universal | 21.6 to 253 Vac, 50 to 60 Hz or 19.2 to 300 Vdc |
| Fuse | 400 mA SB / 250 Vac |
| Max. Required Power | 3.5 W |
| Internal Power Dissipaton | 3 W |
| Isolation Voltage | |
| Isolation Voltage, Test/Working | 3.75 kVac / 250 Vac |
| Power-Up Delay | 0 to 999 s |
| Warm-Up Time | 1 min |
| Programming | Loop Link |
| Signal/Noise Ratio | Min. 60 dB |
| Response Time, Analog | < 60 ms + period |
| Response Time, Digital Output | < 50 ms + period |
| Signal Dynamics, Output | 16 bit |
| Effect of Supply Voltage Change | < 0.005% of span/Vdc |
| Auxiliary Voltage: NAMUR supply | 8.3 Vdc ±0.5 Vdc / 8 mA |
| SO Supply | 17 Vdc/20 mA |
| NPN/PNP Supply | 17 Vdc/20 mA |
| Special Supply (Programmable) | 5 to 17 Vdc/20 mA |
| Temperature Coefficient | < ±0.01% of span/°C |
| Linearity Error | < 0.1% of span |
| EMC Immunity Influence | < ±0.5% |
| Input Specifications | |
| Common Input Specifications | |
| Max. Offset | 90% of selected max. frequency |
| Measurement Range | 0 to 20 kHz |
| Min. Measurement Range | 0.001 Hz |
| Max. Frequency, with Input Filter ON | 50 Hz |
| Min. Period Time with Input Filter ON | 20 ms |
| Input Types | NAMUR acc. to DIN 19234 |
| Input Types | Tacho |
| Input Types | NPN/PNP |
| Input Types | 2-phase encoder |
| Input Types | TTL |
| Input Types | SO acc. to DIN 43864 |
| Output Specifications | |
| Updating Time | 20 ms |
| Current Output | |
| Signal Range | 0 to 20 mA |
| Min. Signal Range | 5 mA |
| Load (@ Current Output) | ≤ 600 Ω |
| Load Stability | ≤ 0.01% of span/100 Ω |
| Current Limit | < 23 mA |
| Voltage Output | |
| Signal Range | 0 to 10 Vdc |
| Min. Signal Range | 250 mV |
| Load (@ Voltage Output) | ≥ 500 kΩ |
| Relay Output | |
| Max. Switching Frequency | 20 Hz |
| Max. Voltage | 250 VRMS |
| Max. Current | 2 AAC |
| Max. AC Power | 100 VA |
| Max. Load at 24 Vdc | 1 A |
| Other Output Types | Active outputs (NPN/PNP) |
| Other Output Types | f/f Converter Output |
| Other Output Types | Frequency generator |
| Of Span | = of the presently selected range |
| Observed Authority Requirements | |
| EMC | 2014/30/EU |
| LVD | 2014/35/EU |
| EAC | TR-CU 020/2011 |
| OMEGA DRST-FR DIN Rail Frequency Input Signal Conditioner - Manual 2.2 MB |
