| Note on application | Only for industrial use |
| Product type | Safety device |
| Application | Overspeed safety relay |
| Safety Integrity Level (SIL) | 6 x LED (yellow) |
| Control | 1 and 2 channel |
| Protection class | III |
| Overvoltage category | III |
| Degree of pollution | 2 |
| Response time | see user manual |
| Restart time | min. 5 s (Boot time) |
| Maximum power dissipation for nominal condition | 3.42 W (UB = 28.8 V, IN1 = IN2 = 50 mA, 2 encoders) |
| Nominal operating mode | 100% operating factor |
| Interfaces | DIN rail TBUS for connection to the master module, supplied as standard |
| Rated surge voltage/insulation | Basic insulation 4 kV between 24 V power supply and I/Os to the housing |
| Designation | A1/A2 |
| Rated control circuit supply voltage US | 24 V DC 20 % / +20 % (provide external protection, typically 1 A) |
| Rated control supply current IS | typ. 50 mA |
| Power consumption at US | typ. 1.2 W |
| Inrush current | 20 A (Ît = 500 µs at Us) |
| Filter time | typ. 20 ms (at A1 in the event of voltage dips at Us) |
| Protective circuit | Suppressor diode |
| Description of the input | TTL |
| Number of inputs | 2 |
| Input voltage range "0" signal | 0 V DC ... 5 V DC (NPN) |
| Input voltage range "1" signal | 16 V DC ... 28.8 V DC (NPN) |
| Input current range "0" signal | < 2 mA (NPN) |
| Max. permissible overall conductor resistance | 150 Ω |
| Current consumption | typ. 30 mA (5 V supply connection) |
| Short-circuit protection | no |
| Nominal output voltage range | 16.7 V DC ... 26.3 V DC (US 2,5 V) |
| pluggable | yes |
| Connection method | Pushin connection |
| Conductor cross section rigid | 0.2 mm² ... 2.5 mm² |
| Conductor cross section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross-section AWG | 24 ... 14 |
| Stripping length | 10 mm |
| Status display | 1 x LED (green), 2 x LED (orange) |
| Operating voltage display | 1 x LED (green) |
| Error indication | 2 x LED (red) |
| Width | 22.61 mm |
| Height | 107.74 mm |
| Depth | 113.6 mm |
| Color (Housing) | yellow (RAL 1018) |
| Housing material | Polyamide PA nonreinforced |
| Performance level (PL) | e |
| Safety Integrity Level (SIL).1 | 3 |
| Degree of protection | IP20 |
| Min. degree of protection of inst. location | IP54 |
| Ambient temperature (operation) | 10 °C ... 55 °C (observe derating) |
| Ambient temperature (storage/transport) | 20 °C ... 85 °C |
| Maximum altitude | ⤠2000 m (Above sea level) |
| Max. permissible humidity (storage/transport) | 95 % (noncondensing) |
| Max. permissible relative humidity (operation) | 95 % (noncondensing) |
| Shock | 10g for Ît = 16 ms (continuous shock, 1000 shocks in each space direction) |
| Vibration (operation) | 10 Hz ... 150 Hz, 2g |
| Identification | CEcompliant |
| Mounting type | DIN rail mounting |
| Assembly note | Observe derating |
| Mounting position | vertical or horizontal |
| Input name | Encoder inputs |
| Precision | 5 % (in reference to the parameterized limit value) |
| Limit frequency | max. 500 kHz |
| Duty factor | 55 % ... 95 % |
| Pulse width | min. 20 µs |
| Input impedance | 120 Ω (per trace) |
| TTL Signal form/signal level | 2.5 V ... 5 V (Duty factor trace A, B: 50 % ±15 %, phase shift trace A, B: 90° ±40°, supply: 5 V ±0.1 V) |
| Category | 4 |
