| Product type | Safety device |
| Application | Emergency stop |
| Safety Integrity Level (SIL) | 20 °C ... 50 °C (When used in potentially explosive areas. Observe derating) |
| Control | 1 and 2 channel |
| Response time | see user manual |
| Restart time | min. 5 s (Boot time) |
| Maximum power dissipation for nominal condition | 7.48 W (with max. permissible load) |
| Nominal operating mode | 100% operating factor |
| Interfaces | DIN rail TBUS for connection to the master module, not supplied as standard |
| Rated surge voltage/insulation | See section âInsulation coordinationâ |
| Designation | A1/A2 |
| Rated control circuit supply voltage US | 24 V DC 20 % / +20 % (external fuse, typically 4 A) |
| Rated control supply current IS | typ. 55 mA (Outputs inactive) |
| Power consumption at US | typ. 1.32 W (Outputs inactive) |
| Inrush current | max. 600 mA (Ît = 25 ms at Us) |
| Filter time | 250 ms (constant) |
| Protective circuit | Serial protection against polarity reversal |
| Description of the input | configurable (as signal output or reset input) |
| Number of inputs | 4 |
| Input voltage range "0" signal | 0 V DC ... 5 V DC (for safe Off) |
| Input voltage range "1" signal | 11 V DC ... 28.8 V DC |
| Input current range "0" signal | < 0.2 mA |
| Cable length | max. 100 m |
| Max. permissible overall conductor resistance | 1.2 kΩ (Input and reset circuit at US) |
| Current consumption | typ. 5.7 mA (typ. with US) |
| Output description | PNP, digital, IEC 611312 type 0.1 |
| Number of outputs | 4 |
| Short-circuit protection | Yes (selflimitation at 1.1 A) |
| Leakage current | max. 4.5 mA (Low state) |
| Max. capacitive load | max. 470 nF |
| Max. inductive load | max. 2.4 mH |
| Limiting continuous current | 100 mA (per channel) |
| Nominal output voltage | 24 V DC (Supply via A1) |
| Nominal output voltage range | 18.6 V DC ... 28.2 V DC (US 0,7 V) |
| Switching frequency | max. 1/4 x tCycle [Hz] |
| Output voltage when switched off | max. 0.1 V |
| Test pulses | ⤠200 µs (Test pulse duration) |
| Discharging circuit | Yes, internal |
| Voltage | 24 V DC (via A1) |
| Maximum inrush current | 1.1 A (Ît = 3 s at Us) |
| pluggable | yes |
| Connection method | USB 2.0 HiSpeed |
| 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), 1 x LED (orange), 1 x LED (blue) |
| 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 (2channel wiring) |
| Safety Integrity Level (SIL).1 | 3 (2channel wiring) |
| Degree of protection | IP20 |
| Min. degree of protection of inst. location | IP54 |
| Ambient temperature (operation) | 20 °C ... 70 °C (observe derating) |
| Ambient temperature (storage/transport) | 30 °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 | C, EMC2 |
| Mounting type | DIN rail mounting |
| Assembly note | Observe derating |
| Mounting position | vertical or horizontal |
| Output voltage | < 0.3 V (Low state) |
| Number of connections | 1 |
| Note | T4: for 20°C £ Tamb £ +50°C |
| Certificate | ISAS71.04 |
