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PRODUCT DESCRIPTION
3511 - Pulse Input Module
The Triconex 3511 is an eight-point, non-commoned Pulse Input Module for AC-coupled balanced differential signals from non-amplified magnetic speed sensors.
It measures pulse rates from 20 Hz to 20,000 Hz with a typical 25 ms update rate and is used with rotating equipment such as turbines and compressors.
It measures pulse rates from 20 Hz to 20,000 Hz with a typical 25 ms update rate and is used with rotating equipment such as turbines and compressors.
BEFORE YOU BUY
Check the complete ordered configuration
ACTUAL APPLICATIONS
Where 3511 supports measurement tasks
Manufacturer literature supports the following measurement arrangements. Confirm the complete installed system and the exact ordered configuration before selecting this component.
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01 · SPEED INPUTS
Acquire rotating-equipment speed
Rotating-equipment speed measurement. Verify the documented field interface, configured limits and approved safety function before service. -
02 · OVERSPEED MONITORING
Evaluate critical speed signals
Turbine and compressor tachometer input. Verify the documented field interface, configured limits and approved safety function before service. -
03 · MAGNETIC SENSORS
Condition tachometer pulse inputs
Magnetic speed-sensor signal acquisition. Verify the documented field interface, configured limits and approved safety function before service.
Technical specifications for 3511
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Product Model3511
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Product ParametersPulse Input Module
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In stock1 unit
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ManufacturerInvensys
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Input Signals8, non-commoned
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Frequency Range20-20,000 Hz
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Update Rate25 ms typical
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High-Range Accuracy+/-0.01% at 1,000-20,000 Hz
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Load Impedance>8 kOhm; 20 kOhm typical
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Common-Mode Range-100 to +100 V peak-to-peak
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Normal-Mode Range1.5-200 V peak-to-peak
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Over-Range Protection+/-150 VDC continuous
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Slot KeysTop 004, bottom 001
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Logic Power<20 W
View all additional
Alternative Names
3511
Tricon Pulse Input Module
Magnetic Speed Sensor Input Module
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SYSTEM CONFIGURATION
Match the installed measurement arrangement
The Triconex 3511 is an eight-point, non-commoned Pulse Input Module for AC-coupled balanced differential signals from non-amplified magnetic speed sensors.
Use 3511 only with the compatible Tricon configuration identified by the complete model number.
Match the exact module type and system version.
Confirm the chassis, logical slot and mechanical keying.
Verify the sensor type, frequency range, shielding and field termination.
Check firmware, application configuration and hazardous-area requirements.
Do not treat another Tricon family module as interchangeable without controlled Triconex verification.
The 3511 accepts AC-coupled balanced differential pulse inputs. Rapidly changing inputs and sustained channel differences require engineering review because they can cause mis-compare diagnostics.
Features:
- 8 non-commoned inputs
- 20-20,000 Hz
- 25 ms typical update
The 3511 requires exact configuration and installation checks before system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Confirm the complete 3511 model number before replacement because related Tricon modules may have different electrical and diagnostic behavior.
Record the installed chassis, slot, system version, firmware and termination arrangement.
Inspect the connectors, keys, terminals and mounting hardware.
Preserve the approved field wiring, scaling, application logic and safety function.
Verify current controlled Triconex documentation and hazardous-area requirements.
Contact Amikon with 3511 for availability and replacement support.
It measures pulse rates from 20 Hz to 20,000 Hz with a typical 25 ms update rate and is used with rotating equipment such as turbines and compressors.
Retain the validated safety logic, termination arrangement and proof-test records. Recommission every affected channel before the safety function is returned to service.
Features:
- 8 non-commoned inputs
- 25 ms typical update
- +/-0.01% at 1,000-20,000 Hz
The 3511 requires replacement verification of the complete ordered configuration and installed measurement system before commissioning.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: The Manufacturer's Manual download is a manufacturer technical-data extract, not a complete operation manual. The installation guide contains only source-supported checks. Specifications of other configurations shown on source pages must not be applied to this exact order.
Features:
- Sources: Existing verified Triconex model documentation and saved model PDFs
- Use complete equipment instructions for installation and commissioning.
- Accessories are supplied only when listed in the quotation
Documentation for the 3511 is supplied here as a technical-data extract; confirm manual availability in the written quotation.
Also searched as
Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size49 × 45.3 × 6.8 cm
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Shipping weight2.95 kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8537101190
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OriginUSA
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
Antistatic protection -
Tracking supplied
Established couriers -
Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 3511
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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Is 3511 suitable for my speed-monitoring application?
Use 3511 for eight non-commoned, AC-coupled differential pulse inputs from supported non-amplified magnetic speed sensors. Confirm the required 20 Hz to 20,000 Hz range and signal levels. -
Can 3511 directly replace another pulse-input module?
Do not decide from the connector or channel count alone. Match the exact 3511 model, eight-input configuration, frequency range, slot keys 004/001, termination and application scaling. -
What should an MRO buyer provide for an urgent 3511 quotation?
Provide the exact model, quantity, label and connector photos, chassis and slot, sensor model, expected frequency and amplitude, termination details, fault indications and destination country. -
Which sensor signals should a system integrator confirm for 3511?
Confirm an AC-coupled, balanced differential signal from a supported non-amplified magnetic speed sensor. Check impedance, normal-mode and common-mode limits before connection. -
What should be checked when 3511 arrives?
Inspect the label, connector pins, slot keys, housing and front indicators. Compare the module and termination arrangement with the installed unit before disconnecting field wiring. -
How should field wiring for 3511 be checked?
Verify channel polarity, pair separation, shielding, grounding and termination. Keep the pulse signal within the documented electrical limits and avoid routing it with high-noise power wiring. -
What should be tested after installing 3511?
Verify PASS, FAULT and ACTIVE status, all required input-activity indicators, measured frequency, application scaling and channel diagnostics across the operating speed range. -
What should engineers check if 3511 shows unstable or missing speed?
Check sensor output amplitude, polarity, shield termination, common-mode voltage, field connections and configured scaling. Compare the input with a known frequency source before changing the module.
READY TO VERIFY YOUR PART?
Get a 3511 quote with price, lead time and revision check.
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