Table of Contents
Technical parameters
Extension
The following article contains storage, installation and working conditions on Unipi Extension modules.
Connector description
| Terminal marking | Meaning |
|---|---|
| +24V | Power terminal - positive pole |
| GND | Power terminal - negative pole |
| DI | Digital input |
| DIGND | Digital input common terminal – negative pole |
| RO | Relay output |
| COM | Common relay terminal |
| AI | Analog input |
| AIR | Analog input for resistance measurement |
| AIS | Current source for resistance measurement |
| AOV | Analog voltage output |
| AGND | Analog input/output common terminal - negative pole |
| RS485-A / RS485-B | RS-485 communication line terminals |
Storage, installation and operating conditions
| Operating conditions | Temperature 0 … +55 °C, relative humidity 10 … 95 %, without aggressive substances, condensing vapour and fog |
| Storing conditions | Temperature -25 … +70 °C, relative humidity 10 … 95 %, without aggressive substances, condensing vapour and fog |
| Altitude | up to 2000 m |
| EMC immunity zone | B (IEC 61000-6-2 compliant) |
| Protection class | I |
| Overvoltage category | II |
| Pollution degree | 2 |
| Ingress Protection (IEC 529) | IP 20 |
| Operation position | Any |
| Installation | On 35mm DIN rail (EN 60715, 35mm) into distribution cabinet; holder and screws (M3x5, DIN 965, PH 1) included |
| Connection | Pluggable terminal blocks |
| Wire gauge | Max. 2.5 mm2 |
| Terminal spacing | 5.08 mm |
| Terminal tightening torque | Max. 0.4 Nm |
Power supply
| Rated voltage - SELV | 24 V⎓ (±5%) |
| Power consumption | Typ. 3 W Max. 12 W |
| Reverse polarity protection | Yes |
Dimensions and weight
| Dimensions | 72 × 90 × 56 mm (DIN holder 3 mm) |
| Weight | depending on the model - from 140 g to 300 g |
Unipi Extension xS:
Digital inputs
| Input type | SINK |
| Input terminal | DI |
| Common ground | DIGND |
| Log. 0 | < 3 V DC |
| Log. 1 | > 7 V DC |
| Maximum voltage | 35 V DC |
| Non-defined state | 3-7 V DC |
| Input resistance for TRUE | 6 200 Ω |
| Voltage drop on DI diode | 1.2 V |
| Minimum pulse length | 20 μs |
| 0–>1 / 1–>0 delay | Typ. 20 μs / 60 μs |
| Maximum CNT counter input frequency | 10 kHz |
| LED indication | Yes |
| Galvanic isolation | Yes (Basic, between DI groups) |
| Insulation voltage (pulse) | 1500 V |
Relay outputs
Please note: The data below represent a selection of the most important parameters and serve only as a quick reference.
Detailed information can be found in the product datasheet provided by the relay manufacturer: FTR-F3AA024E-HA
| Output type | Electromechanic non-shielded relay |
| Output terminal | RO |
| Common terminal | COM |
| Contact type | Normally open (SPST-NO) |
| Used relay type | FTR-F3AA024E-HA |
| Maximum switching voltage | 250 V AC 30 V DC |
| Maximum switching current | 5 A |
| Maximum common terminal current | 10 A |
| Short-term current overload | 5 A |
| Mechanical lifespan | 5 000 000 |
| Electrical lifespan | Up to 100 000 (according to the connected load) |
| Operate/release time | 10 ms |
| Designed for load character | AC-15, DC-13 (resistive) |
| Load handling | External (RC, varistor, diode, thermistor) |
| Short circuit protection | No |
| Overvoltage protection | No |
| LED indication | Yes |
| Galvanic isolation | Yes (Basic) |
| Insulation voltage (pulse) | 2500 V between RO and RO 4000 V between RO and all other circuits |
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Warning:
Only extra-low voltage (ELV) can be connected to the relay output RO 1 of Unipi Extension xS5* modules (xS51, xs52, etc.)! The parameters specified above must also be respected.
Analog inputs (type 1)
| Input terminals | AI, AIS |
| Common conductor | AGND |
| Galvanic isolation | Yes |
| Input functions | 0–10 V⎓ voltage measurement, 0–20 mA current measurement, 0–1960 Ω or 0–100 kΩ resistance measurement |
| Resolution | 24 bits (resistance measurement), 16 bits (voltage and current measurement) |
| Conversion time | 400 ms (resistance measurement), 60 μs (voltage and current measurement) |
| Protection type | Integrated overvoltage protection |
| Maximum input voltage | 15 V⎓ |
| Measurement accuracy | ±0.2 % |
| Input resistance (voltage measurement) | 44 kΩ |
| Input resistance (current measurement) | 100 Ω |
Analog inputs (type 2)
| Input terminals | AI / AIS |
| Common ground | AGND / AIR |
| Overvoltage protection | Integrated transil |
| Maximum voltage | 15 V⎓ |
| Maximum current | 40 mA |
| Connection | SINK (measurement relative to the ground) |
| Galvanic isolation (pulse) | 1500 V between AI and all other circuits |
Attention:
Measurements outside the specified range may reduce the accuracy of the measurement and/or reduce the input impedance.
In case of strong interference to the cable (EN 6100-6-4), the measurement accuracy can be reduced to 1 % of the measured value. The use of additional EMC filters and shielded cabling is recommended (connect shield to the ground point of the device).
Voltage 0-10 V
| Available on device | xS53, xS54 |
| Measuring range | 0.1–10 V |
| Accuracy | ±0.2 % (of range) |
| Input resistance | 12 kΩ ±20 % |
| Resolution | 24 bits |
| Conversion time | 200 ms |
Voltage 0-2 V
| Available on device | xS53, xS54 |
| Measuring range | 0.1–2 V |
| Accuracy | ±1 % (of range) |
| Input resistance | 1 MΩ ±50 % |
| Resolution | 24 bits |
| Conversion time | 200 ms |
Current 4-20 mA
| Available on device | xS53, xS54 |
| Measuring range | 1–20 mA |
| Accuracy | ±0.2 % (of range) |
| Input resistance | 100 Ω ±1 % |
| Resolution | 24 bitů |
| Conversion time | 200 ms |
Resistance 2 kΩ
| Available on device | xS52, xS54 |
| Measuring range | 75–2000 Ω |
| Connection | Two-wire |
| Measuring current | < 0.3 mA (average) |
| Resolution | 24 bits |
| Accuracy | ±0.3 % (of value) / 0.5 Ω |
| Conversion time | 200 ms |
| Compatible sensors | Pt100/Pt1000 (tol. ±0.75 ˚C), Ni100/Ni1000/2k reostat, etc.. |
Please note:
The compensation of the lead resistance and the conversion to temperature according to the selected sensor is up to the user application.
Resistance 20 kΩ
| Available on device | xS52, xS54 |
| Measuring range | 1–20 kΩ |
| Connection | Two-wire |
| Measuring current | < 0.03 mA (average) |
| Resolution | 24 bits |
| Accuracy | ±1 % (of value) / 10 Ω |
| Conversion time | 200 ms |
| Compatible sensors | Reostat |
Analog outputs
| Output terminals | AOV |
| Common conductor | AGND |
| Galvanic isolation | Yes |
| Output functions | 0–10 V⎓ voltage source |
| Resolution | 12 bits |
| Conversion time | 300 μs |
| Protection type | Integrated overvoltage protection |
| Output voltage range | 0-10 V⎓ |
| Output accuracy | ±0.5 % |
RS-485 interface
| Terminals | RS485-A, RS485-B |
| Baudrates | 2400 bps 4800 bps 9600 bps 19200 bps 38400 bps 57600 bps 115200 bps |
| Pull-up/pull-down resistors | No |
| Terminating resistor | Builtin attachable, 120 Ω (RS485-END) |
| Galvanic isolation (pulse) | 1500 V between RS-485 and all other circuits |