FLM‑420/4‑CON Conventional Interface Modules 4‑wire LSN
| Technical Specifications | ||
| Electrical | LSN | |
| • LSN input voltage | e 15 V DC to 33 V DC (min. to max.) | |
| • Max. current consumption from LSN | 8.5 mA | |
| Primary line | ||
| • Line voltage | 21 to 22 V DC (21.5 V DC typ. ±0.5 V DC)) | |
| • Max. current supply 2- wire sensor | 6 mA | |
| • Max. line current | 80 mA per line (±10% at 25 °C) | |
| • Max. line resistance | 50 Ω per line (max. 2 x 25 Ω) | |
| • Galvanic isolation from LSN | Yes | |
| Input power supply (PWR IN) | ||
| • Voltage | 24 to 30 V DC | |
| • Residual ripple | < 150 mV | |
| Output power supply 4‑wire detector (AUX) | ||
| • Voltage | 23.5 V DC to 30 V DC (rated voltage 24 V DC) |
|
| • Residual ripple | < 300 mV | |
| • Max. current (supply to 4‑wire detector) |
200 mA per output (can be switched in parallel) |
|
| EOL resistor for stub wiring of conventional zone (class B) | ||
| • With calibration value | 2.2 kΩ | |
| • Without calibration value | 2.2 kΩ / 3.9 kΩ | |
| Mechanics | Display element | 1 red LED, flashes at 1 Hz in the event of an alarm |
| Address setting | 3 rotary switches | |
| Connections | 12 screw terminals | |
| Permitted wire cross-section | 0.6 to 3.3 mm2 | |
| Housing materia | ||
| • Surface-mounted housing | ABS/PC blend | |
| • Interface housing and adapte | PPO (Noryl) | |
| Color | ||
| • Surface-mounted housing | Signal white, RAL 9003 | |
| • Interface housing and adapter | Off- white, similar to RAL 9002 | |
| Dimensions | ||
| • FLM-420/4-CON-S | Approx. 126 x 126 x 71 mm (W x H x D) | |
| • FLM-420/4-CON-D | Approx. 110 x 110 x 48 mm (W x H x D) | |
| Weight | Without / with packaging | |
| • FLM-420/4-CON-S | Approx. 390 g / 590 g | |
| • FLM-420/4-CON-D | Approx. 150 g / 350 g | |
| Environmental conditions | Permitted operating temperature | -20 °C to +55 °C |
| Permitted storage temperature | -25 °C to +80 °C | |
| Permitted rel. humidity | < 96% (non-condensing) | |
| Classes of equipment as per IEC 60950 | Class III equipment | |
| Protection class as per IEC 60529 | ||
| • FLM-420/4-CON-S | IP 54 | |
| • FLM-420/4-CON-D | IP 30 | |