 |
SIMATIC S7-300, DIGITAL OUTPUT SM 322, OPTICALLY ISOLATED, 8 DO, DC 48-125V, 1.5A, 1 X 20 PIN |
| Supply voltage |
| Load voltage L+ |
| ● Rated value (DC) |
48 V |
| ● permissible range, lower limit (DC) |
40 V |
| ● permissible range, upper limit (DC) |
140 V |
| Input current |
| from load voltage L+ (without load), max. |
2 mA |
| from backplane bus 5 V DC, max. |
100 mA |
| Power loss |
| Power loss, typ. |
7.2 W |
| Digital outputs |
| Number of digital outputs |
8 |
| Limitation of inductive shutdown voltage to |
M (-1 V) |
| Switching capacity of the outputs |
| ● Lamp load, max. |
15 W; 15 W (48 V) or 40 W (125 V) |
| Output voltage |
| ● for signal "1", min. |
L+ (-1.2 V) |
| Output current |
| ● for signal "1" rated value |
1.5 A |
| ● for signal "1" permissible range for 0 to 40 °C, max. |
1.5 A |
| ● for signal "1" minimum load current |
10 mA |
| ● for signal "1" permissible surge current, max. |
3 A; for 10 ms |
| ● for signal "0" residual current, max. |
0.5 mA |
| Switching frequency |
| ● with resistive load, max. |
25 Hz |
| ● with inductive load, max. |
0.5 Hz |
| ● on lamp load, max. |
10 Hz |
| Total current of the outputs (per group) |
| horizontal installation |
| — up to 40 °C, max. |
6 A |
| — up to 50 °C, max. |
4 A |
| — up to 60 °C, max. |
3 A |
| vertical installation |
| — up to 40 °C, max. |
4 A |
| Cable length |
| ● Cable length, shielded, max. |
1 000 m |
| ● Cable length unshielded, max. |
600 m |
| Interrupts/diagnostics/status information |
| Alarms |
| ● Diagnostic alarm |
No |
| Diagnostic messages |
| ● Diagnostics |
No |
| ● Wire-break |
No |
| ● Short-circuit |
No |
| ● Fuse blown |
No |
| ● missing load voltage |
No |
| Diagnostics indication LED |
| ● Rated load voltage PWR (green) |
No |
| ● Fuse OK FSG (green) |
No |
| Galvanic isolation |
| Galvanic isolation digital outputs |
| ● between the channels, in groups of |
4 |
| ● between the channels and the backplane bus |
Yes; Optocoupler |
| Isolation |
| Isolation tested with |
1500 V AC |
| Connection method |
| required front connector |
20-pin |
| Dimensions |
| Width |
40 mm |
| Height |
125 mm |
| Depth |
120 mm |
| Weights |
| Weight, approx. |
250 g |
| last modified: |
21.08.2014 |
