|
SIMATIC S7-1200, DIGITAL OUTPUT SM 1222, 8 DO, RELAY 2A |
| Supply voltage |
| permissible range, lower limit (DC) |
20.4 V |
| permissible range, upper limit (DC) |
28.8 V |
| Input current |
| from backplane bus 5 V DC, max. |
120 mA |
| Digital inputs |
| ● from load voltage L+ (without load), max. |
11 mA/relay coil |
| Power losses |
| Power loss, typ. |
4.5 W |
| Digital inputs |
| Number of digital inputs |
0 |
| Digital outputs |
| Number of digital outputs |
8 |
| ● In groups of |
2 |
| short-circuit protection |
No; to be provided externally |
| Switching capacity of the outputs |
| ● with resistive load, max. |
2 A |
| ● on lamp load, max. |
30 W with DC, 200 W with AC |
| Output voltage |
| ● Rated value (AC) |
5 V AC to 250 V AC |
| ● Rated value (DC) |
5 V DC to 30 V DC |
| Output current |
| ● for signal "1" permissible range, max. |
2 A |
| Output delay with resistive load |
| ● "0" to "1", max. |
10 ms |
| ● "1" to "0", max. |
10 ms |
| Aggregate current of outputs (per group) |
| horizontal installation |
| — up to 50 °C, max. |
10 A; Current per mass |
| Relay outputs |
| ● Number of relay outputs |
8 |
| ● Rated input voltage of relay coil L+ (DC) |
24 V |
| ● Number of operating cycles, max. |
mechanically 10 million, at rated load voltage 100,000 |
| Switching capacity of contacts |
| — with inductive load, max. |
2 A |
| — on lamp load, max. |
30 W with DC, 200 W with AC |
| — with resistive load, max. |
2 A |
| Cable length |
| ● Cable length, shielded, max. |
500 m |
| ● Cable length unshielded, max. |
150 m |
| Interrupts/diagnostics/status information |
| Alarms |
| ● Alarms |
Yes |
| ● Diagnostic alarm |
Yes |
| Diagnostic messages |
| ● Diagnostic functions |
Yes |
| ● Monitoring the supply voltage |
Yes |
| Diagnostics indication LED |
| ● For status of the outputs |
Yes |
| ● for maintenance |
Yes |
| ● Status indicator digital output (green) |
Yes |
| Galvanic isolation |
| Galvanic isolation digital outputs |
| ● between the channels |
Relays |
| ● between the channels, in groups of |
2 |
| ● between the channels and the backplane bus |
1500 V AC for 1 minute |
| Permissible potential difference |
| between different circuits |
750 V AC for 1 minute |
| Degree and class of protection |
| Degree of protection to EN 60529 |
|
| ● IP20 |
Yes |
| Standards, approvals, certificates |
| CE mark |
Yes |
| CSA approval |
Yes |
| UL approval |
Yes |
| cULus |
Yes |
| RCM (formerly C-TICK) |
Yes |
| FM approval |
Yes |
| Marine approval |
| ● Marine approval |
Yes |
| Climatic and mechanical conditions for storage and transport |
| Climatic conditions for storage and transport |
| Free fall |
| — Drop height, max. (in packaging) |
0.3 m; five times, in dispatch package |
| Temperature |
| — Permissible temperature range |
-40 °C to +70 °C |
| Air pressure acc. to IEC 60068-2-13 |
| — Permissible air pressure |
1080 to 660 hPa |
| Relative humidity |
| — Permissible range (without condensation) at 25 °C |
95 % |
| Mechanical and climatic conditions during operation |
| Climatic conditions in operation |
| Temperature |
| — Permissible temperature range |
-20 °C to +60 °C horizontal mounting, -20 °C to 50 °C vertical mounting, 95% humidity, non-condensing |
| — Min. |
-20 °C |
| — max. |
60 °C |
| — Permissible temperature change |
5°C to 55°C, 3°C / minute |
| Connection method |
| required front connector |
Yes |
| Mechanics/material |
| Type of housing (front) |
|
| ● plastic |
Yes |
| Dimensions |
| Width |
45 mm |
| Height |
100 mm |
| Depth |
75 mm |
| Weights |
| Weight, approx. |
190 g |
| last modified: |
13.10.2014 |
