Why the 1336 Plus II is Still a Trusted Solution for Variable Frequency Control

The Allen-Bradley 1336 PLUS II remains a reliable and adaptable solution for variable frequency control, offering wide voltage compatibility, high power capacity, and advanced motor control features. Designed to support industrial automation, it provides precise speed regulation, proactive diagnostics, and robust safety protections. With digitally programmable flexibility and modular HMI interfaces, it ensures easy integration and user-friendly operation. Its durability in harsh environments and compliance with global safety standards make it an ideal choice for manufacturing, material handling, and HVAC applications. In this article, we will be discussing these features described above in detail and will also look into some of the example modules.

Wide Voltage Range

One of the reasons the 1336 PLUS II remains a trusted solution for variable frequency control is its ability to support multiple voltage ranges: 200-240V AC (low voltage), 380-480V AC (medium voltage), and 500-600V AC (high voltage). This flexibility allows seamless integration into diverse electrical infrastructures without requiring additional transformers or costly modifications. Many industrial facilities have unique power requirements, and the 1336 PLUS II ensures compatibility across global markets. As a result, it has remained a go-to solution for international manufacturing plants, OEMs, and automation providers who value compatibility and ease of deployment.

Power Capacity

The 1336 PLUS II drives have power ratings between 0.5 and 600 horsepower (0.37 and 448 kW), making them appropriate for various applications, from large industrial machines to small-scale enterprises.  Because of its adaptability, it’s a great choice for sectors including material handling, HVAC systems, manufacturing, and conveyors.  Its versatility is further increased by supporting both constant and variable torque applications, guaranteeing that users in various industries can depend on its track record of performance.

Human-Machine Interface (HMI) in Modules

 The optional modular HMI of the 1336 PLUS II drives makes it simple for users to design and manage the drive.  The user-friendly interface makes it easy for operators to diagnose and enhance performance by providing real-time data, diagnostics, and failure history.  Its reputation as a trustworthy and user-centric solution is strengthened by its user-friendly design and multilingual support, which guarantee accessibility across all sectors and geographical areas.

Reliable Environmental Performance

The 1336 PLUS II remains a trusted solution for variable frequency control due to its ability to operate reliably in diverse environmental conditions. It functions at elevations up to 1000 meters (3300 feet) without derating and withstands ambient temperatures ranging from 0 to 50°C (32 to 122°F) for IP00 enclosures and 0 to 40°C (32 to 104°F) for IP20, IP54, and IP65 enclosures. Additionally, it supports 5% to 95% non-condensing humidity, a storage range of -40 to 70°C (-40 to 158°F), and endures mechanical shocks up to 15G peak. Designed to resist vibrations, dust, and electromagnetic interference, it meets UL, CSA, and low-voltage safety standards. Its resilience in harsh environments makes it a long-lasting and reliable choice for industrial applications requiring stable and high-performance motor control under extreme conditions.

Proactive Diagnostics and Preventive Maintenance for Maximum Uptime

The 1336 PLUS II remains a trusted solution for variable frequency control due to its advanced diagnostics and preventive maintenance capabilities, ensuring reliability and reduced downtime. It continuously monitors system performance, providing real-time status updates and fault reporting through the Human Interface Module (HIM) or SCANport Communications Port. Upon startup, it runs diagnostic routines to detect potential issues, allowing early intervention before faults become critical. During operation, users can monitor output current and control conditions, enabling preventive maintenance and proactive issue resolution. The drive detects and alerts operators to conditions like current limit exceedance, bus voltage status, motor overload, or drive overload, ensuring quick corrective action. Simple, plain-language fault messages streamline troubleshooting, minimizing downtime and improving operational efficiency. These user-friendly, real-time diagnostics reinforce the 1336 PLUS II’s reliability in demanding industrial applications.

Digitally Programmable Flexibility

The 1336 PLUS II remains a trusted solution for variable frequency control due to its digitally programmable features and high-performance capabilities. It supports local programming via the Human Interface Module (HIM) or remote configuration through serial communications ports using PLC, SLC, or software, offering versatile control options. With configurable I/O, the drive adapts to various control schemes, ensuring seamless integration into different automation systems. It delivers exceptional torque performance, with starting acceleration and running torque exceeding 250% and a constant torque speed range of 120:1, making it ideal for demanding industrial applications.

These features provide consistent, reliable operation under extreme conditions, ensuring optimal efficiency and productivity. The 1336 PLUS II’s advanced programmability and superior torque control reinforce its long-standing reputation as a robust and adaptable drive solution.

Safety Features with Voltage Management

The 1336 PLUS II remains a trusted solution for variable frequency control due to its robust voltage management and protective features, ensuring optimal performance and safety. It maintains precise overvoltage and Undervoltage trip thresholds across 200-240V, 380-480V, and 500-600V configurations, with bus voltage protections to prevent system instability.

For enhanced current protection, the drive features software, hardware, and instantaneous current limits, ranging from 20% to 300% of the Variable Torque (VT) rated current. Additionally, it withstands line transients up to 6000V peak (IEEE C62.41-1991) and arc transients up to 1500V peak, ensuring high noise immunity.

With ground fault and short circuit detection, the 1336 PLUS II delivers unmatched system protection, making it a reliable choice for demanding industrial applications that require safe, efficient, and long-lasting motor control.

Advanced Control Features

The 1336 PLUS II remains a trusted solution for variable frequency control due to its advanced motor control capabilities and high-precision performance. It utilizes sine-coded PWM with adjustable carrier frequency, allowing fine-tuned voltage and frequency control from 0 to 400 Hz. Supporting both digital and analog inputs, it delivers frequency accuracy within ±0.01% or ±0.4%, ensuring consistent motor speed regulation. With selectable V/Hz control, programmable acceleration/deceleration, and overload handling up to 150% for constant torque applications, it provides exceptional operational flexibility. Additionally, programmable current limits (20%-160%) and Class 10 inverse time overload protection enhance motor safety and reliability.

Example Modules

1336F-A007-AA-EN-GM1

The 1336 PLUS II remains a trusted solution for variable frequency control due to its precise voltage regulation, durable design, and consistent performance. The 1336F-A007-AA-EN-GM1 model operates with a 200-240V AC input and delivers a 5.5 kW (7.5 HP) nominal output, making it ideal for various industrial applications. It supports a frequency range of 47-63 Hz and features automatic trip protection at 138V AC (Undervoltage) and 285V AC (overvoltage) to prevent electrical faults. Designed for NEMA Type 1, IP20 enclosures, it ensures safe operation in clean, non-corrosive environments. With an 8.8 kVA output and 22 output amps, the 1336 PLUS II offers efficient, adaptable, and reliable motor control, enhancing industrial automation and operational efficiency.

1336F-A007-AA-EN-GMS5-L9E

The 1336 PLUS II 1336F-A007-AA-EN-GMS5-L9E is a microprocessor-based PWM AC drive, offering precise control for 3-phase variable speed motors. Compatible with Allen-Bradley/Rockwell Automation PLC systems, it features a GM5 DeviceNet communication module and 115V AC interface with encoder feedback for enhanced connectivity. Designed for controlled environments, it operates within 40°C and includes insulated gate transistors, status LEDs, sensors, a DC cooling fan, and smart thermal dissipation. Its NEMA Type 1/IP20 enclosure ensures protection, while overcurrent, overvoltage stall protection, fault reset, and six alarms enhance reliability. Programmable features include skip frequencies, DC injection braking, dynamic braking, and slip compensation, making it a versatile industrial solution.

1336F-A007-AA-EN-HAS2-L4-MX3

The 1336 PLUS II 1336F-A007-AA-EN-HAS2-L4-MX3 is a 7 HP adjustable-frequency AC drive designed for 200- 240V AC input. It features an IP20/NEMA Type 1 enclosure, suitable for indoor installations, with 28A input and 27A output current ratings. The drive supports sine-coded PWM control, a programmable carrier frequency, and an English-language HMI with a digital potentiometer. With RFI filtering for emission control and a 0.95 power factor, it ensures stable operation. It operates within 32-104°F and up to 3300 feet altitude. Featuring a TTL contact interface and robust protection, it remains a trusted solution for precise motor control.

Final Thoughts

In conclusion, the Allen-Bradley 1336 PLUS II continues to be a trusted solution for variable frequency control, offering wide voltage compatibility, high power capacity, and digitally programmable flexibility. Its modular HMI, proactive diagnostics, and preventive maintenance features enhance usability and uptime, while robust environmental performance and safety protections ensure long-term reliability. The advanced control features, precision motor regulation, and seamless integration with automation systems make it a versatile choice for industries worldwide. With various example modules tailored for different applications, the 1336 PLUS II remains an industry-standard drive, delivering efficiency, adaptability, and high-performance motor control across demanding environments. We at DO Supply carry thousands of different 1336 PLUS II Drives and modules, all ready to be shipped to your doorstep and backed by our unbeatable 2-year warranty. We also offer repair services for drives in need of special attention. Give us a call today and we can find the right drive for the right job. We also have a comparison guide here.