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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Specification |
| Manufacturer | Schneider Electric / Modicon |
| Part Number | 140EHC10500 |
| Product Series | Modicon Quantum |
| Number of Channels | 5 independent counter channels |
| Maximum Counting Frequency | 50 kHz per channel |
| Operating Modes | Up/Down counter, Frequency measurement, Period measurement, Pulse width, Quadrature (A/B) |
| Input Signal Types | 24 V DC single-ended or 5 V DC differential (RS-422) |
| Counter Register Range | 16-bit or 32-bit configurable |
| Onboard Digital Outputs | 2 fast response outputs per channel for threshold switching |
| Backplane Current Load | 450 mA at 5.1 V DC |
| Isolation Voltage | 1,000 V rms channel-to-bus, 500 V DC channel-to-channel |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
Product Introduction & Supply Chain Strategy
The Modicon 140EHC10500 is a 5-channel high-speed counter module engineered for the Modicon Quantum automation platform. Operating at frequencies up to 50 kHz, it processes rapid pulse trains from rotary optical encoders, turbine flow meters, and high-speed positioning sensors without burdening the main CPU’s scan cycle time.
Because Schneider Electric has fully retired the Quantum product line, obtaining this specialized card as New Surplus is a crucial risk-management strategy. High-speed counting cards are often critical for precise batch dosing, turbine monitoring, and packaging synchronization. Keeping 1–2 factory-sealed 140EHC10500 modules on-site eliminates lead time variability, avoids the internal timing degradation common in refurbished cards, and minimizes your Total Cost of Ownership (TCO).
Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
Execute strict Lock-Out/Tag-Out (LOTO) procedures on the Quantum rack power supplies and field device power lines. Wear a grounded ESD wrist strap before handling the module. Document the wiring pinouts and sensor input signal types (24 V DC vs 5 V RS-422 differential) on the existing terminal block assembly.
Stage 2: Removal
Unlatch and pull off the field terminal block assembly from the module front panel. Depress the upper and lower module release latches on the Quantum rack slot. Gently pull the legacy counter module straight out along the guide rails, avoiding angular torque on the rear backplane pins.
Stage 3: Installation (Clone & Seat)
Inspect the rear backplane connector pins on the new 140EHC10500 module for shipping damage or contamination. Align the card with the guide rails in the targeted rack slot. Push firmly until both locking latches click into place. Re-attach the field terminal block.
Stage 4: Power-On & Testing
Verify field supply voltages with a digital multimeter before turning on system power. Energize the rack and confirm that the front panel READY LED turns solid green. Spin field encoders or generate pulse inputs to verify channel LED pulsing and register value updates in EcoStruxure Control Expert (Unity Pro) or Concept software.
140EHC10500
140EHC10500
140EHC10500
Firmware/Software Versions & Upgrade Notes
- Software Support: Fully supported in EcoStruxure Control Expert (formerly Unity Pro), Concept V2.1+, and ProWORX 32 via module hardware configuration blocks.
- Operating Mode Selection: Channel counting modes (e.g., Quadrature x1/x2/x4 vs Single Pulse) are assigned in software during module initialization. Ensure parameter tables match the exact pulse feedback characteristics of your connected encoder hardware.
- Signal Line Shielding Caution: Always use double-shielded twisted-pair cabling for 50 kHz high-speed pulse signals and ground the shield at the module end only. Running unshielded pulse lines next to AC power wiring causes high-frequency noise interference, resulting in missed counts or erratic position calculations.
Frequently Asked Questions (FAQ)
Is this 140EHC10500 high-speed counter card guaranteed to be New Surplus and unused?
Yes, this unit is guaranteed 100% New Original / New Surplus. Sourced from corporate spare reserves and authorized factory channels, it has never been installed in an active plant, pulled from a decommissioned system, or subjected to component repairs.
Why should I choose New Surplus over a cheaper refurbished high-speed counter card?
High-speed counter modules utilize sensitive optocouplers and fast opto-isolators on their input front-ends. Under continuous high-frequency operation, degraded optocouplers in used/refurbished cards experience propagation delays and pulse rounding, causing false count readings at higher frequencies. Buying New Surplus ensures original OEM timing performance and signal accuracy.
Can the 140EHC10500 module directly control fast field actuators?
Yes, the 140EHC10500 features onboard fast digital outputs that can be configured to trip directly when a predefined target count or threshold value is reached. This onboard switching bypasses the PLC scan time, achieving sub-millisecond response for critical cutting or batching operations.
Does this module support both 24 V DC proximity sensors and 5 V differential encoders?
Yes, each channel can be independently wired to accept either 24 V DC single-ended pulse signals or 5 V DC differential RS-422 line-driver encoder signals by matching field wiring to the appropriate terminal block pins.
What warranty comes with this New Surplus high-speed counter card?
All New Surplus 140EHC10500 modules include a full 1-year replacement warranty. Every card undergoes complete physical inspection and static electrical testing prior to dispatch in protective ESD-safe packaging.
