OSSDs (Output Signal Switching Devices)
| SFM-…2: | Two OSSDs with 4 normally closed contacts |
Auxiliary contactsOne auxiliary contact per channel.
InputsOne start input per channel and one feedback loop per channel. Freely usable on SFM-B…
Logic functionsProgrammable with AsiMon software. All safety components can be programmed with different functions as inputs. The inputs can be linked with AND or OR gates. With the monitors SFM-B…, additional logic functions such as FlipFlop, switch-on delay, turn-off delay or pulses are available. The number of links and the memory depth are larger than on the SFM-A… devices.
Dimension drawing
Wiring diagram
Dimension drawingWiring diagram
Technical dataApprovals
Mechanical values and environment
| Housing material | Polyamide PA6.6 |
| Weight | |
| Net | 0,45 kg |
| Ambient temperature | -20 … 60 °C |
| Degree of protection | IP20 |
| Mounting method | Mounting rail 35mm according to DIN EN 6715 TH35 |
| Connection | Connection terminals |
| Safety contacts 1.14, 1.24, 2.14, 2.24 | |
| Number of safety contacts | 2 |
| Auxiliary contact terminals: L/+/1.Y1, L/+/2.Y1 | |
| Number of monitoring contacts | 2 |
| Terminals for the start buttons: 1.Y2, 2.Y2 | |
| Number of inputs | 2 |
Electrical connection ratings
| ASi voltage | 18,5 … 31,6 V |
| ASi operating current | max.45 mA |
| Operating voltage DC | -15 … 24 … +15 V DC |
| Rated operating current Ie | 200 mA |
| Thermal rated current Ith | |
| Per output circuit | 3 A |
| Fusing | |
| External contact fuses (safety circuit) according to IEC 60269-1 | 4A medium slow-blow |
| Residual ripple | max.15 % |
| Overvoltage category according to IEC EN 60664-1 | 3 |
| Connection cross-section | 2x AWG 20 to 14 |
| For wire | 1x(0.5…4.0)mm2, 2x(0.5…2.5)mm2 |
| Flexible wire with cable end sleeve | 1x(0.5…2.5)mm2, 2x(0.5…1.5)mm2 |
| Current via feedback loop | |
| at 24 V DC | 10 mA Optocoupler input active high input current |
| Response delay | max.40 ms |
| Switch-on delay | max.10 s |
| Max. contact load | |
| DC-13 | 1A 24V |
| AC-15 | 3A 230V |
| ASi slave type | |
| EA code: 7 | |
| ID code: F | |
| Safety contacts 1.14, 1.24, 2.14, 2.24 | |
| Type of output | |
| 2 NO contacts per safety output | Relay contacts, floating, positively driven |
| Auxiliary contact terminals: L/+/1.Y1, L/+/2.Y1 | |
| Type of output | Semiconductor output, 200 mA, short-circuit and reverse polarity protection |
| Terminals for the start buttons: 1.Y2, 2.Y2 | |
| Type of input | |
| at 24 V DC | Optocoupler input active high for start buttons, input current approx. 10 mA |
Interface, bus
| Data interface | Connection socket for configuration |
Other
| In compliance with | EN ISO 13849-1, EN 62061, IEC 61508, IEC EN 60204-1, EN 50295 |
| Function scope | Enhanced |
Reliability values according to EN ISO 13849-1
| Performance Level | PL e |
| Category | 4 |
| PFHD | 9.1 x 10-9 |
| SIL CL | 3 |
| Mission time | 20 y |
