Designing H-Bridge Motor Drives Without Shoot-Through
A practical guide to H-bridge motor drives covering switching states, dead time, inductive current paths, PWM choices, protection, PCB layout, PLC interfacing, and staged commissioning tests.
Manufacturer: Schneider Electric
Product No.: TSXCFY21
Country of origin:France
Product Type: Motion Control Modules
Payment: T/T, Western Union
Weight: 500g
Dimensions: 220 mm x 140 mm x 45 mm
Shipping port: Xiamen
Warranty: 12 months
Designed for precise multi-axis positioning within the Modicon Premium automation platform, the Schneider Electric TSXCFY21 provides dedicated motion control for up to two independent stepper motor axes. This module offloads real-time pulse generation and trajectory calculation from the main CPU, ensuring high-accuracy positioning and consistent dynamic performance in demanding industrial environments.
| Manufacturer | Schneider Electric |
| Model / SKU | TSXCFY21 |
| Product Series | Modicon Premium |
| Module Type | Motion Control Module (Stepper Motors) |
| Number of Controlled Axes | 2 independent axes |
| Power Consumption | 5.6 W |
| Software Compatibility | Unity Pro, PL7 Pro |
| Slot Width | Single slot (Modicon Premium rack) |
| Shipping Weight (Calculated) | 0.50 kg |
| Package Dimensions (Calculated) | 220 mm x 140 mm x 45 mm |
| Interface Port | Function / Signal Assignment |
|---|---|
| Front Panel Connectors | HE10 connectors for auxiliary I/O and stepper drive interface signals |
| Drive Outputs | Pulse (PULS) and Direction (DIR) differential/single-ended signals |
| Auxiliary Inputs | Limit switch inputs, reference point (home) switch inputs, and emergency stop feedback |
The TSXCFY21 is a legacy Modicon Premium hardware component. When replacing older revisions of this module, verify that your current Unity Pro or PL7 Pro hardware catalog matches the exact firmware revision of the replacement unit to prevent configuration mismatch faults during download.
Because stepper motor control signals operate at high frequencies, routing the pulse/direction cables in the same conduit as high-voltage AC motor lines can induce signal noise, leading to lost steps. Always isolate control cabling from power wiring. Ensure the rack's power supply module has sufficient 5V backplane capacity to support the 5.6 W draw of this module alongside your existing CPU and communication cards.
Use shielded, twisted-pair cables for all HE10 connections to the stepper drives. Terminate the cable shield at the functional ground (FE) bar of the enclosure using a low-impedance ground clamp. Do not daisy-chain the ground connections of the stepper drives back to the PLC rack to avoid ground loop currents.
CRITICAL WARNING
De-energize the entire Modicon Premium rack before inserting or removing the TSXCFY21 module. Hot-swapping this module can cause permanent damage to the backplane connectors, corrupt the running PLC program, or trigger unexpected motion in connected stepper actuators.
Ensure the PLC rack power supply is completely switched off and locked out.
Align the module with the target slot on the Modicon Premium rack, ensuring the bottom locating pins engage correctly.
Pivot the module upward into the rack connector and tighten the top securing screw to ensure a reliable ground connection to the rack chassis.
Connect the pre-wired HE10 cable assemblies to the front ports, ensuring the locking latches click securely into place.
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Returns & Warranty

Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
France
|