Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Pulse Encoder Interface Module |
| Part Kit Number | 58976008 |
| Power Supply | 24 V DC |
| Encoder Input | ABZ incremental TTL/HTL pulse signals |
| Communication Link | Fiber optic interface to ABB drive unit |
| Operating Temperature | −20°C to +70°C |
| Protection Class | IP20 |
| Weight | 0.15 kg standalone module |
| Dimensions | 150 × 100 × 30 mm |
| Wire Terminals | 0.5–2.5 mm² wire capacity |
| Diagnostic Features | Built-in pulse signal fault detection |
| Compatibility | ABB ACS800 series variable frequency drives |
Product Introduction
ABB NTAC-02 is a pulse encoder interface module built for ABB ACS800 drive systems. It captures incremental encoder ABZ pulse signals and transmits feedback data over optical fiber to the drive control unit.
The fiber link isolates electrical noise between the motor encoder and drive electronics. It closes the speed/position loop to maintain steady motor rotation, even inside cabinets with heavy electromagnetic interference.

NTAC-02

NTAC-02

NTAC-02

NTAC-02
Application Scenarios & Field Experience
Part 1 (Narrative Paragraph)
Many legacy ACS800 drive installations rely on long encoder cable runs. Electrical noise from contactors and power cables corrupts pulse signals, triggering random drive faults and speed drift. NTAC-02 uses optical transmission to break ground loops and stop pulse distortion without rewiring the full motor circuit.
Part 2 (Numbered List)
- Metal rolling mills: Main roll motor closed-loop speed control for consistent sheet thickness
- Cranes & hoists: Position feedback for lifting motors to prevent load overtravel
- Paper production: Web handling drives for synchronized multi-axis speed matching
- Extrusion lines: Precision screw motor speed regulation for polymer output consistency
Part 3 (Short Field Story)
A paper mill’s ACS800 drive tripped intermittently during high production runs. Standard copper encoder wiring picked up noise from nearby large contactors. The maintenance team fitted an NTAC-02 module with factory fiber cables. Pulse errors stopped immediately, and the line ran fault-free through the next 30-day continuous run. No drive firmware changes were required.
Standard Operating Procedure (SOP) for Quality Control
- Visual & Origin Inspection: Verify ABB OEM labeling, serial number, PCB traces, and terminal integrity. Check original packaging seals for new original inventory.
- Live Rig Testing: Power module at 24VDC, feed simulated ABZ encoder pulses, validate fiber handshake and signal fault detection.
- Firmware Verification: Confirm module hardware revision matches the OEM datasheet; record revision number for documentation.
- ESD-Safe Packaging: Clean terminal contacts, place inside anti-static bag, seal, and pack into rigid carton for transit protection.
Frequently Asked Questions (FAQ)
Q1: Is the ABB NTAC-02 compatible with ACS880 drives? A: NTAC-02 is designed for ACS800 series. It will not work natively with ACS880 hardware. Confirm your drive model and option slot before ordering.
Q2: What warranty do you provide for this unit? A: We offer a 12-month warranty. The warranty covers manufacturing defects under normal operating conditions. Overvoltage, reversed power polarity, or incorrect fiber termination voids coverage.
Q3: What is the current stock and shipping timeline? A: We keep limited new surplus stock. Units ship within 3 business days after order confirmation. Larger quantities require lead time; confirm stock status before locking project schedules.
Q4: Can I swap NTAC-02 between different ACS800 drive firmware revisions? A: Hardware swap is possible, but older drive firmware may not support all diagnostic flags. Back up drive parameters before replacement to avoid configuration loss.
Q5: Can I install or remove this module while the drive cabinet remains powered? A: This module is not hot-swappable. Cut main cabinet power and wait for DC bus discharge before touching terminals or fiber connectors. Live handling can damage encoder input circuits.

