| Article number |
6ES7451-3AL00-0AE0 |
|
SIMATIC S7-300, FM 451 |
| Supply voltage |
|
| Rated value (DC) |
24 V |
| Input current |
|
| Current consumption, typ. |
550 mA |
| Encoder supply |
|
| 5 V encoder supply |
|
| ● 5 V |
Yes |
| ● Output current, max. |
210 mA |
| ● Cable length, max. |
35 m; at max. 210 mA |
| 24 V encoder supply |
|
| ● 24 V |
Yes |
| ● Output current, max. |
300 mA |
| ● Cable length, max. |
100 m; at max. 300 mA |
| Absolute encoder (SSI) encoder supply |
|
| ● Absolute encoder (SSI) |
Yes |
| ● Type of output voltage |
24 V DC |
| ● Output current, max. |
300 mA |
| ● Cable length, max. |
300 m; At max. 156 kbit/s |
| Power loss |
|
| Power loss, typ. |
3.6 W |
| Digital inputs |
|
| Number of digital inputs |
12; 4 per axis |
| Functions |
Reference cams, reversing cams, flying actual value setting, start/stop positioning |
| Input voltage |
|
| ● Rated value (DC) |
24 V |
| ● for signal “0” |
-30 to +5 V |
| ● for signal “1” |
+11 to +30V |
| Input current |
|
| ● for signal “0”, max. (permissible quiescent current) |
1.5 mA |
| ● for signal “1”, typ. |
9 mA |
| Digital outputs |
|
| Number of digital outputs |
12; 4 per axis |
| Functions |
Rapid traverse, creep, run right, run left |
| Short-circuit protection |
Yes |
| Output voltage |
|
| ● for signal “1”, min. |
UP -3 V |
| Output current |
|
| ● for signal “1” permissible range for 0 to 55 °C, max. |
600 mA; with UPmax |
| ● for signal “0” residual current, max. |
0.5 mA |
| Encoder |
|
| Connectable encoders |
|
| ● Incremental encoder (symmetrical) |
Yes |
| ● Incremental encoder (asymmetrical) |
Yes |
| ● Absolute encoder (SSI) |
Yes |
| Encoder signals, incremental encoder (symmetrical) |
|
| ● Trace mark signals |
A, notA, B, notB |
| ● Zero mark signal |
N, notN |
| ● Input voltage |
5 V difference signal (phys. RS 422) |
| ● Input frequency, max. |
1 MHz |
| Encoder signals, incremental encoder (asymmetrical) |
|
| ● Trace mark signals |
A, B |
| ● Zero mark signal |
N |
| ● Input voltage |
24 V |
| ● Input frequency, max. |
50 kHz; for 25 m cable length, 25 kHz for 100 m cable length |
| ● Cable length, shielded, max. |
100 m |
| Encoder signals, absolute encoder (SSI) |
|
| ● Input signal |
5 V difference signal (phys. RS 422) |
| ● Data signal |
DATA, notDATA |
| ● Clock signal |
CL, notCL |
| ● Telegram length, parameterizable |
13 or 25 bit serial |
| ● Clock frequency, max. |
1.25 MHz |
| ● Gray code |
1 |
| ● Cable length, shielded, max. |
300 m; At max. 156 kbit/s |
| Potential separation |
|
| Potential separation digital inputs |
|
| ● Potential separation digital inputs |
Yes |
| Potential separation digital outputs |
|
| ● Potential separation digital outputs |
Yes |
| Ambient conditions |
|
| Ambient temperature during operation |
|
| ● min. |
0 °C |
| ● max. |
55 °C |
| Ambient temperature during storage/transportation |
|
| ● min. |
-40 °C |
| ● max. |
70 °C |
| connection method / header |
|
| required front connector |
1x 48-pin |
| Dimensions |
|
| Width |
50 mm |
| Height |
290 mm |
| Depth |
210 mm |
| Weights |
|
| Weight, approx. |
1 300 g |
