Pepperl+Fuchs VAS-2A-K12-U
AS-Interface Safety Monitor
- Two dependent or independent open circuits
- Fulfills technical safety requirements for Category 4 according to EN 954-1, EN 61508, SIL 3 and Performance Level e (PLe)
- Logic configuration by means of drag drop with diagrammatical display on the PC
Item Number:
VAS-2A-K12-U
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- Overview
- Comments
| Connection | screw terminals |
| Number/Type | 2 opto-coupling inputs (high-active) ""Start"" and ""protection control (EDM)"", input currents about 10 mA at 24 V DC |
| Ambient temperature | -20 ... 60 В°C (-4 ... 140 В°F) |
| Rated operating current | 200 mA 45 mA from AS-Interface |
| Functional safety | ISO 13849-1:2008 (up to category 4/PL e), IEC 61508:2000/IEC 62061:2005 (up to SIL3) |
| Surge protection | overvoltage category III for rated operating voltage 300 V DC acc. to VDE 0110 Part 1 |
| Transfer rate | 9600 baud, no parity, 1 start bit, 1 stop bit, 8 data bits |
| AS-Interface specification | V2.1 |
| Safety Integrity Level (SIL) | SIL 3 |
| LED POWER | from: no power supply green, continuous illuminated: AS-Interface power supply available |
| UL File Number | E198304 |
| LED AS-i | from: normal operation red, continuous illuminated: communication error |
| Degree of protection | EN 60529:2000 |
| Mass | 450 g |
| Degree of protection | IP20 (only for use in electrical operating rooms / switch cabinet suitable with minimum protection type IP54) |
| Performance level (PL) | PL e |
| Rated operating voltage | 24 V DC В± 15 % Residual ripple 15 % 26.5 ... 31.6 V from AS-Interface |
| Interface type | RS 232, serial |
| B10d | 2 E+5 |
| Mounting | DIN rail mounting |
| Standards | NFPA 79:2002 |
| Storage temperature | -30 ... 70 В°C (-22 ... 158 В°F) |
| AS-Interface | EN 62026-2:2013 |
| Electrical safety | EN 50178:1998 |
| Output type | Signal output: PNP transistor output, 200 mA, short-circuit and reverse-polarity-proof |
| LED yellow | off: - constantly lit: startup/restart lock active flashing: external test required |
| 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 |
| Response delay | < 40 ms |
| LED red | Off: contacts of the safety output (OSSD) closed constantly lit: contacts of the safety output (OSSD) open flashing: error |
| Safety output | 2 x 2 potential-free NO contacts, max. contact loading: 1 A DC-13 at 24 V DC, 3 A AC-15 at 230 V AC |
| Switch-on delay | < 10 s |
| MTTFd | 389 a |
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