Siemens 6ES7451-3AL00-0AE0 S7-400 FM 451 Positioning Module

6ES7451-3AL00-0AE0 – Siemens SIMATIC S7-400 FM 451 Positioning Module

Key Technical Specifications

• Brand: Siemens
• Model: 6ES7451-3AL00-0AE0
• Category: Positioning module
• Series: SIMATIC S7-400, FM 451
• Number of channels: 3 independent positioning channels
• Supply voltage: 24 V DC rated value
• Current consumption: typically 550 mA
• Power loss: typically 3.6 W
• Digital inputs: 12 inputs, 4 per axis
• Digital outputs: 12 outputs, 4 per axis
• Dimensions: 50 mm width, 290 mm height, 210 mm depth
• Weight: approximately 1300 g

Encoder Supply and Signal Handling

• The 5 V encoder supply delivers up to 210 mA with a maximum cable length of 35 m.
• The 24 V encoder supply delivers up to 300 mA with a maximum cable length of 100 m.
• The absolute encoder SSI supply provides 24 V DC at up to 300 mA and supports 300 m cables.
• Symmetrical incremental encoders use A, notA, B, notB tracks plus N and notN zero marks.
• Symmetrical incremental encoder input frequency reaches 1 MHz with 5 V difference signals.
• Asymmetrical incremental encoders use A and B tracks plus N zero marks at 24 V.
• Asymmetrical incremental encoder input frequency reaches 50 kHz at 25 m cable length.
• Absolute SSI encoders use DATA, notDATA, CL, and notCL signals with 13 or 25 bit telegrams.
• The SSI clock frequency reaches 1.25 MHz with gray code output.

Digital Input and Output Functions

• Digital inputs handle reference cams, reversing cams, flying actual value setting, and start/stop positioning.
• Input voltage for signal "0" ranges from -30 V to +5 V, and signal "1" ranges from +11 V to +30 V.
• Input current for signal "1" is typically 9 mA, while signal "0" allows up to 1.5 mA quiescent current.
• Digital outputs control rapid traverse, creep, run right, and run left motions.
• Output voltage for signal "1" stays at minimum UP -3 V with short-circuit protection.
• Output current for signal "1" reaches up to 600 mA within 0 to 55 °C.
• Residual current for signal "0" stays at maximum 0.5 mA.

Environmental and Installation Notes

• The module operates within an ambient temperature range of 0 °C to 55 °C.
• Storage and transport temperatures range from -40 °C to 70 °C.
• Potential separation exists for both digital inputs and digital outputs.
• You need one 48-pin front connector for proper wiring and connection.
• The shielded cable length for asymmetrical encoders reaches up to 100 m.
• The shielded cable length for SSI encoders reaches up to 300 m at 156 kbit/s.

Package Contents

• 1x Siemens 6ES7451-3AL00-0AE0 FM 451 positioning module
• 1x configuration package on CD
• 1x 48-pin front connector (required for connection)

Shipping and Support

• We ship worldwide through FedEx, UPS, and DHL.
• We dispatch all orders within 5 days after payment confirmation.
• We accept returns within 30 days for eligible items.
• All products are brand new and original.
• Our stock is available for immediate order processing.

FAQ

• Q: How many positioning channels does this module offer?
  A: The FM 451 module provides three independent positioning channels for rapid and slow traverse drives.
• Q: What is the maximum input frequency for symmetrical incremental encoders?
  A: Symmetrical incremental encoders reach up to 1 MHz with 5 V difference signals.
• Q: Which encoder types can I connect?
  A: You can connect symmetrical incremental encoders, asymmetrical incremental encoders, and absolute SSI encoders.
• Q: What is the supply voltage?
  A: The rated supply voltage is 24 V DC with a typical current consumption of 550 mA.
• Q: What is the ambient temperature range?
  A: The module operates from 0 °C to 55 °C during operation.
• Q: What front connector do I need?
  A: You need one 48-pin front connector for proper installation.
• Q: How much does the module weigh?
  A: The approximate weight is 1300 g.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628

Partner NexAuto Technology Limited : https://www.nex-auto.com/