Table of Contents
WR-5
Wireless Modbus relay
| Model number: | WR-5 |
|---|
Features
- wireless fan-coil controller
- 5 remote controlled relays
- 1 temperature sensor input
- 1 digital input, dry contact
- modbus RTU slave protocol
- very long range, no hopping
- up to 16 devices per group
- multiple addressable groups
- protected private connection
Technical specification
MODBUS
| Address range: | 220..235 |
| Data bits & parity: | 8n1 |
| Supported functions: | 01 – read coils |
| 04 – read input registers | |
| 05 – write single coil | |
| 15 – write multiple coils |
RELAY OUTPUT
| Nominal rating: | 5A 250VAC resistive |
| Timeout: | 24h (reset if no messages) |
TEMPERATURE SENSOR
| Input type: | ES digital sensor DS18B20 |
| Connection protocol: | 1-wire digital thermometer |
| Sensor error | -1000: missing, -1001: short |
| Measuring range | -50..+125°C |
| Accuracy | ±0.5°C (-10°C to +85°C) |
| Cable length | 50m, UTP 0.25..0.5mm2 |
RADIO
| Frequency band: | ISM 868MHz (EU) |
| Subband: | L 866.8MHz, 25mW, 1% utility |
| Modulation | FSK 38.4kbps 80kHz bandwidth |
| Group address | 32-bit, automatically generated |
| Listen before talk | yes, delay limited to 20ms |
| Startup time | 10s power-on to network ready |
| Message delay | 5ms from tx start to relay on |
| Operating range | 300m with optical visibility |
| Output power | 25mW |
GENERAL
| Power supply | 230V, 50..60Hz, 3.5W |
| Terminals | 0.25..2.5mm2 |
| Operating conditions | -20..+50°C, 0..85% rh nc |
| Storage temperature | -40..+85°C |
| Weight | 220g |
| Degree of protection | IP20 |
| Standards | EN60730-1, EN300-220-2, EN 301 489-1, EN 301 489-3 |
Dimensions and mounting
Terminals
Examples
