6ES7452-1AH00-0AE0 Siemens S7-400 Cam Control FM 452 Module

Product Overview

• Siemens 6ES7452-1AH00-0AE0 is a cam control system module for the SIMATIC S7-400 platform
  • Controls up to 16 digital outputs as electronic cams
  • Supports incremental, absolute (SSI), and 2-wire encoders
  • Includes 11 digital inputs for reference switches and measurement
  • Comes with configuration software on CD for easy setup

Technical Specifications – Hierarchical View

• Brand & Model
  • Brand: Siemens
  • Model: 6ES7452-1AH00-0AE0
  • Series: SIMATIC S7-400
  • Product type: Cam control module FM 452
• Power Supply
  • Rated voltage: 24 V DC
  • Max current consumption: 500 mA
  • Typical power loss: 8.1 W
• Encoder Supply Outputs
  • 5 V encoder supply: Yes, 300 mA max
  • 5 V cable length: 32 m max
  • 24 V encoder supply: Yes, 300 mA max
  • 24 V cable length: 100 m max
• Digital Inputs (11 Channels)
  • Functions: Reference point switch, flying measurement, brake release
  • Also enable track outputs no. 3 to 10
  • Rated voltage: 24 V DC
  • Signal “0”: -28.8 to +5 V
  • Signal “1”: +11 to +28.8 V
  • Input current (signal “1”): 9 mA typical
  • No potential separation on inputs
• Digital Outputs (16 Channels)
  • Function: Cam track outputs
  • Short-circuit protection: Yes
  • Rated voltage: 24 V DC
  • Signal “1” voltage: UP – 0.8 V minimum
  • Output current per channel: 600 mA max (0-55°C)
  • Residual current (signal “0”): 0.5 mA max
  • No potential separation on outputs
• Encoder Support – Incremental (Symmetrical)
  • Signals: A, notA, B, notB, N, notN
  • Input voltage: 5 V differential (RS 422)
  • Max frequency: 1 MHz
• Encoder Support – Incremental (Asymmetrical)
  • Signals: A, B, N (zero mark)
  • Input voltage: 24 V
  • Max frequency: 50 kHz (25 m cable)
  • Reduced frequency: 25 kHz (100 m cable)
• Encoder Support – Absolute (SSI)
  • Input signal: 5 V differential (RS 422)
  • Data signals: DATA, notDATA
  • Clock signals: CL, notCL
  • Telegram length: 13 or 25 bit (selectable)
  • Max clock frequency: 1 MHz
  • Supports Gray code
  • Max cable length: 300 m (at 125 kHz)
• Environmental Conditions
  • Operating temperature: 0 to 55 °C
  • Storage temperature: -40 to 70 °C
• Mechanical Data
  • Width: 25 mm
  • Height: 290 mm
  • Depth: 210 mm
  • Weight: approx. 650 g
  • Connection: 1x 48-pin front connector (not included)

Manager’s Insight – Why Choose This Cam Control Module

• This module replaces mechanical cams with precise electronic timing
  • Therefore, it eliminates wear and tear on physical cam switches
  • Furthermore, it offers 16 programmable outputs for flexible machine control
  • Additionally, it supports multiple encoder types for various applications
  • Consequently, you can reduce maintenance costs and downtime

Expert Review – Field Engineer’s Perspective

• I have used this FM 452 module in packaging and printing machines
  • The 1 MHz encoder input handles high-speed applications effectively
  • SSI absolute encoders provide position data without homing each cycle
  • However, remember that outputs share a common ground – no isolation
  • Use the brake release input for motor brake control during emergencies
  • The flying measurement input captures positions at high speed accurately
  • Moreover, the software package simplifies cam curve programming

Installation & Commissioning Guide

• Follow these steps for a successful installation
  • First, mount the module in an S7-400 rack with adequate clearance
  • Next, connect 24 V DC power supply to the module
  • Then, wire encoders according to their type (incremental or SSI)
  • After that, connect field devices to the 16 output channels
  • Finally, install the configuration software from the included CD
• Commissioning tips
  • Begin with a simple cam curve to verify basic operation
  • Use the reference point switch input for accurate homing
  • Monitor output LEDs during testing for visual feedback

Compatibility & Certifications

• The module works with all SIMATIC S7-400 CPUs and racks
  • Supports incremental encoders with 5 V (RS 422) or 24 V signals
  • Supports SSI absolute encoders with 13 or 25 bit telegrams
  • Includes CE certification for European markets

Suitable Applications

• This cam control module is ideal for these use cases
  • Packaging machines: Filling, sealing, and cutting timing control
  • Printing presses: Registration mark and color sequence control
  • Assembly lines: Synchronizing multiple actuators with position
  • Textile machinery: Pattern and motion control for looms
  • Woodworking equipment: Cutting and shaping sequence control

Package Contents

• The package includes these items
  • 1x Siemens 6ES7452-1AH00-0AE0 cam control module
  • 1x configuration software CD
  • 1x quick start guide
  • Note: Front connector (48-pin) is not included

Warranty & Shipping

• 12-month warranty covers manufacturing defects
• We ship within 12-24 hours of order confirmation
• Express options: FedEx, UPS, DHL

Comparison with Similar Models

• Consider these alternatives based on your requirements
  • 6ES7452-1AH00-0AE0 – 16 outputs, SSI support (this model)
  • 6ES7452-1AL00-0AE0 – 8 outputs, no SSI, lower cost
  • 6ES7452-1AM00-0AE0 – 16 outputs, enhanced diagnostics
  • 6ES7470-0AA00-0AA0 – Stepper motor control module
  • 6ES7352-1AH00-0AE0 – S7-300 version, 8 outputs

Frequently Asked Questions (FAQ)

• Q: What types of encoders work with the 6ES7452-1AH00-0AE0?
  • A: The module accepts incremental (symmetrical/asymmetrical), SSI absolute, and 2-wire sensors. This covers most industrial applications.
• Q: Can I use this module without the SSI absolute encoder?
  • A: Yes, you can use incremental encoders exclusively. However, you will need to home the machine on each power-up.
• Q: What is the maximum cable length for SSI encoders?
  • A: You can run SSI cables up to 300 meters when using a 125 kHz clock frequency. Higher frequencies require shorter cables.
• Q: Why do my outputs not work with inductive loads?
  • A: The outputs are not isolated. For inductive loads like relays or solenoids, add an external freewheeling diode to protect the output stage.
• Q: Is the configuration software compatible with Windows 10?
  • A: The software on CD works with older Windows versions. For Windows 10, download the latest version from Siemens support.

Buying Guide – Key Selection Criteria

• Choose this module when you need 16 programmable cam outputs with encoder feedback
• Select SSI absolute encoders for position retention after power-off
• Use incremental encoders for cost-sensitive applications with homing capability
• Consider the 600 mA per output limit – use external contactors for higher currents
• Plan for an external 48-pin front connector (sold separately)

Contact & Support

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825
• Technical support available 24/7 via email

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