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The AS-Interface Safety Monitor is designed to ensure high levels of safety in industrial environments by providing an open circuit functionality. It meets stringent technical safety standards, including Category 4 according to EN 954-1, EN 61508, SIL 3, and Performance Level e (PLe).
The AS-Interface Safety Monitor is a critical component in the realm of industrial safety systems, primarily utilized to monitor safety-related devices and processes. This product is designed to fulfill rigorous safety requirements, making it suitable for applications that demand high reliability and operational integrity. Its compliance with standards such as EN 954-1, EN 61508, and SIL 3 underscores its capability to operate effectively within safety-critical environments.
A key feature of the AS-Interface Safety Monitor is its user-friendly logic configuration, which allows for intuitive setup through a drag-and-drop interface with diagrammatic displays on a PC. This facilitates seamless integration and adjustment of safety functions in complex industrial systems. Common applications include monitoring emergency stop buttons, safety gates, and other devices that require precise safety monitoring and rapid response capabilities.
| Safety Integrity Level (SIL) | SIL 3 |
| Degree of protection | EN 60529:2000 |
| LED green | Off: contacts of the safety output (OSSD) open constantly lit: contacts of the safety output (OSSD) closed flashing: delay time running for Stop Category 1 |
| MTTFd | 389 a |
| Storage temperature | -30 … 70 °C (-22 … 158 °F) |
| LED red | Off: contacts of the safety output (OSSD) closed constantly lit: contacts of the safety output (OSSD) open flashing: error |
| Degree of protection | IP20 (only for use in electrical operating rooms / switch cabinet suitable with minimum protection type IP54) |
| Connection | screw terminals |
| Electrical safety | EN 50178:1998 |
| AS-Interface | EN 62026-2:2013 |
| Standards | NFPA 79:2002 |
| Response delay | < 50 ms |
| LED POWER | from: no power supply green, continuous illuminated: AS-Interface power supply available |
| Rated operating current | 150 mA 45 mA from AS-Interface |
| Surge protection | overvoltage category III for rated operating voltage 300 V DC acc. to VDE 0110 Part 1 |
| Functional safety | ISO 13849-1:2008 (up to category 4/PL e), IEC 61508:2000/IEC 62061:2005 (up to SIL3) |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| B10d | 2 E+5 |
| Switch-on delay | < 10 s |
| Transfer rate | 9600 baud, no parity, 1 start bit, 1 stop bit, 8 data bits |
| LED AS-i | from: normal operation red, continuous illuminated: communication error |
| LED yellow | off: – constantly lit: startup/restart lock active flashing: external test required |
| Mass | 350 g |
| Rated operating voltage | 24 V DC ± 15 % Residual ripple 15 % 26.5 … 31.6 V from AS-Interface |
| Interface type | RS 232, serial |
| Mounting | DIN rail mounting |
| AS-Interface specification | V2.1 |
| Performance level (PL) | PL e |
| Safety output | 2 potential-free NO contacts, max. contact loading: 1 A DC-13 at 24 V DC, 3 A AC-15 at 230 V AC |
| Number/Type | 2 opto-coupling inputs (high-active) “”Start”” and “”protection control (EDM)””, input currents about 10 mA at 24 V DC |
| Output type | Signal output: PNP transistor output, 200 mA, short-circuit and reverse-polarity-proof |
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