Allen‑Bradley 1336‑B003‑ECD‑FC3‑L1‑S1 3‑HP 460V AC Adjustable Frequency Drive

Technical Specifications

Model:1336‑B003‑ECD‑FC3‑L1‑S1

Brand:Rockwell Allen‑Bradley

Product Type:Complete AC Adjustable Frequency Drive Unit

Applicable Series:1336‑PLUS Constant‑Torque AC Drive

Power Rating:3 HP / 2.2 kW

Input:3‑Phase, 380‑480V AC, 50/60 Hz

Output Rated Current:5.0‑6.0A

Output KVA:3.9‑4.8KVA

Enclosure Type:ECD (NEMA‑4 / IP56 fully sealed metal enclosure, dust‑tight, splash‑proof, suitable for wash‑down harsh plant environment)

Factory Options:

‑ FC3: FC3 NEMA4‑rated sealed local HIM operator panel (membrane sealed keypad, local start‑stop, speed potentiometer, LED fault/status indicators, exclusive for NEMA4 enclosure front‑door mounting, cannot interchange with FA2 HIM)

‑ L1: L1 +5 V DC TTL logic I/O expansion board, additional +5V logic‑level digital input / relay output channels for external interlock and status feedback

‑ S1: S1 serial communication option board, RS‑485 physical interface, supports SCANport protocol, realizes PLC remote start‑stop, speed reference, parameter read‑write and fault information upload

Control Mode:Sensorless vector control, V/F control

Speed Regulation Accuracy:Open‑loop ±0.5% rated speed

Overload Rating:150% rated current for 1 minute (constant‑torque)

Installation Method:Indoor wall‑mount surface mounting, applicable for dusty, splash‑prone and wash‑down production sites

Operating Temperature:0℃ ~ +40℃

Storage Temperature:-40℃ ~ +70℃

Product Details

1336‑B003‑ECD‑FC3‑L1‑S1 is full‑optioned complete NEMA4 IP56 sealed‑enclosure 3‑HP 460V 1336‑PLUS AC drive, not separate PCB boards. Based on base model 1336‑B003‑ECD, factory pre‑installed three options: FC3 NEMA4 sealed HIM panel, L1 +5V DC TTL‑level logic I/O expansion board and S1 RS‑485 SCANport serial communication board.

The FC3 HIM is dedicated membrane‑sealed operator unit for NEMA4 enclosure front‑door installation. It supports local on‑unit operation with sealed start/stop push‑buttons, analog speed‑setting potentiometer and running/fault LED indicators. Membrane structure prevents dust, water spray and cleaning liquid ingress. It is mechanically incompatible with FA2 NEMA1 HIM panels and cannot be replaced mutually.

The L1 option expands extra +5 V TTL‑compatible digital inputs and relay outputs, designed to connect with TTL‑type PLC and sensor equipment. It fulfills multi‑equipment interlock, external status feedback and dry‑contact command acquisition requirements, different from 24V level L2 and 115V‑AC interface boards.

The S1 SCANport communication board provides RS‑485 communication link between drive and Allen‑Bradley PLC or host controller. It supports remote start‑stop control, remote speed setpoint, parameter access, real‑time running data monitoring and fault code upload, implementing centralized network control for automation system.

Internal hardware integrates rectifier power stack, inverter IGBT power section, main control CPU board, auxiliary power supply, sampling and signal‑conditioning circuits. Supports sensorless vector and V/F control for standard three‑phase induction motors. Original base I/O terminals are reserved for local hard‑wired control.

Full protection suite: over‑current, over‑voltage, under‑voltage, over‑temperature, input phase‑loss, motor thermal overload, ground‑fault protection. Used for full‑unit replacement when multiple internal assemblies suffer compound damage. When swapping complete drive, back‑up original parameters, verify firmware compatibility and complete motor auto‑tuning. Shielded cables must be adopted for I/O and communication wiring; power cables and signal cables shall be routed separately. Strict ESD protection required for installation and commissioning.

Typically applied for overhaul of legacy food‑processing machinery, packaging lines, wash‑down conveyors and dusty‑site pumps & fans. It meets harsh environmental enclosure requirements, meanwhile supports local front‑panel operation, extra TTL‑logic interlock I/O and PLC network remote control.

Remark:Legacy EOL complete drive unit;original production discontinued;please confirm motor rating, site environmental enclosure requirement, +5V TTL signal level, SCANport protocol compatibility, input voltage, installation dimension and all option function matching before purchase.