$ 1,330.41
The FM 451 three-channel positioning module handles the adjustment of mechanical axes in the case of rapid-traverse and creep-speed drives. The module is intended for the positioning of adjusting and setup axes, preferably with standard motors, controlled via contactors or frequency converters.
| 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 |
