6ES7453-3AH00-0AE0 – SIMATIC S7-400 FM 453 Positioning Module

3-channel · servo & stepper motors · incl. configuration CD

 Product Overview

• FM 453 (order no. 6ES7453-3AH00-0AE0) – high‑performance positioning module for S7‑400.
• Controls servo and stepper motors on up to 3 axes simultaneously.
• Supports incremental (RS422) and absolute SSI encoders – flexible feedback.
• On‑board 24 V I/O: 6 digital inputs + 4 digital outputs per channel, fully configurable.
• Analog setpoint output (–10 … +10 V) and step/direction signals for stepper drives.
• Ideal for precision positioning, CNC, robotics, and special‑purpose machinery.

 Core Technical Data

• Supply voltage: 24 V DC (20.4 … 28.8 V, dynamic 18.5 … 30.2 V).
• Input current: 1 A (5 V encoder) / 2 A per channel (load voltage).
• Encoder supply: 5 V / 300 mA (max. 35 m cable) · 24 V / 300 mA (max. 100 m).
• Incremental encoder input: 1 MHz (10 m) / 0.5 MHz (35 m) – RS422 differential.
• SSI absolute encoder: clock up to 1.25 Mbit/s (2.5 Mbit/s soon), cable up to 250 m.
• Analog output: ±10 V / ±3 mA for servo drives, max. 30 m cable.
• Stepper pulse: 200 kHz (500 kHz soon), differential output, 60 mA.
• Digital outputs: 0.5 A (40 °C) / 0.1 A (60 °C), short‑circuit protected.
• Power loss: typ. 8 W – dimensions 50×290×210 mm, weight ~1.62 kg.

 Environmental & Installation

• Operating temperature: 0 … 55 °C – storage: -40 … 70 °C.
• Required front connector: 1x 48‑pin (not included).
• Mounting on S7‑400 rack – standard width 50 mm.
• Potential separation: digital I/O via optocoupler.

 Applications & Compatibility

• Perfect for: CNC machines, pick‑and‑place, packaging, web tension control, and multi‑axis positioning.
• Works with S7‑400 CPUs (all common families) – integrates via STEP 7 (CD included).
• Supports servo drives with ±10 V analog input and stepper drives with pulse/direction.
• SSI and incremental encoder interfaces cover most industrial feedback systems.

 Expert FAQ – FM 453 Positioning

• Q1: Which encoders work with the FM 453?
  Supports incremental encoders (RS422, up to 1 MHz) and absolute SSI encoders (up to 1.25 Mbit/s). Choose based on travel range and precision needs.
• Q2: Can I control mixed motor types on different axes?
  Yes – each of the 3 channels can be configured independently for servo (analog) or stepper (pulse/direction).
• Q3: What is the maximum pulse frequency for stepper drives?
  Currently 200 kHz; a firmware update will support 500 kHz (available soon).
• Q4: How do I connect 5 V vs 24 V encoders?
  The module provides both 5 V (300 mA) and 24 V (300 mA) encoder supplies. Select the correct supply and cable length (35 m for 5 V, 100 m for 24 V).
• Q5: Is the FM 453 suitable for safety‑related applications?
  Not a safety module itself, but can be used in standard motion control with external safety relays or safe PLC functions.

 Delivery, Warranty & Support

• Warranty: 12‑month comprehensive warranty.
• Shipping: FedEx, UPS, DHL – 24‑28 hours dispatch.
• Global express delivery with full tracking.

 Oiltech Controls’s Insight

• The FM 453 is a workhorse for multi‑axis positioning. Its flexible encoder interface and mixed motor support make it a top choice for retrofits.
• We recommend pairing with SSI absolute encoders for long travel ranges – the 250 m cable capability saves complex repeater setups.
• For stepper applications, use differential outputs for noise immunity and longer cable runs (up to 35 m).

▸ Why Oiltech Controls?

• 15+ years in industrial automation spares – deep technical know‑how.
• Global shipping with FedEx, UPS, DHL – fast and reliable.
• Tested surplus / refurbished options – quality assured.
• 12‑month warranty and technical verification prior to dispatch.
• Expert support for obsolete control systems and legacy PLCs.

– FM 453 · 6ES7453-3AH00-0AE0 –