SIMATIC S7-400 – FM 451 Positioning Module – Siemens Function Modules

$ 1,272.57

SKU: 6ES7451-3AL00-0AE0

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.

Siemens Function Modules SIMATIC S7-400 Product Specifications:

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
Weight 1.466 kg
Dimensions 23.3 × 30.1 × 6.3 cm

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