HVAC & Conveyor Motor Speed Control Solution — Allen-Bradley 1305-BA01A-HA2 | 1305 Series
In industrial facilities worldwide, uncontrolled motor starts cause up to 600% inrush current spikes, leading to mechanical stress on couplings and belts, premature bearing failure, and energy waste that accounts for 30–40% of avoidable operating costs. HVAC air handling units running at fixed speed consume full power even at 20% load demand — a chronic inefficiency that drives up energy bills and shortens equipment life cycles.
The Allen-Bradley 1305-BA01A-HA2 eliminates these problems at the source. By delivering precise, stepless speed control from 0 to 60 Hz across a 1HP / 0.75kW motor load on 200–240V single or three-phase supply, this drive enables soft-start ramp profiles, PID closed-loop feedback, and dynamic braking — reducing energy consumption by up to 50% in variable-torque applications and extending motor service life by 2–3× compared to across-the-line starting.
Where This Product Is Used
HVAC & Building Automation
— Air handling unit (AHU) supply/return fans: variable air volume (VAV) control, ambient temperature 0–40°C, meets ASHRAE 90.1 energy efficiency mandates
— Cooling tower fan speed modulation: reduces fan noise by 10 dB at 70% speed, extends blade life
— Chilled water pump pressure control: maintains ±0.5 PSI setpoint via 4–20 mA PID feedback loop
Conveyor & Material Handling
— Light-duty belt conveyors in food processing: washdown-adjacent environments, IP20 enclosure with external IP54 panel mounting
— Accumulation conveyor speed synchronization: 0.1 Hz resolution for precise line balancing
— Incline conveyor soft-start: eliminates product rollback on 15° inclines during startup
Pump & Water Treatment
— Booster pump stations: pressure-based speed control, eliminates water hammer, meets NSF/ANSI 61 system compatibility
— Irrigation pump variable flow: 20–60 Hz range matches seasonal demand curves
— Chemical dosing pump: precise low-speed torque delivery at 5 Hz for accurate metering
Packaging & Assembly
— Labeling machine infeed conveyor: synchronization with encoder feedback, ±0.5% speed accuracy
— Filling machine auger drive: torque-controlled dispensing at 3–15 Hz
— Reject conveyor: instant speed change response <50 ms for high-speed sorting lines
Textile & Printing
— Winding/unwinding tension control: dancer roll feedback via analog input, 0–10V signal
— Print roller drive: ultra-smooth speed ramp, <0.1% speed ripple at steady state
— Fabric feed conveyor: multi-drive synchronization via external reference signal
Agriculture & Grain Handling
— Grain auger soft-start: eliminates shear pin failures on cold-start, ambient –10°C to +40°C
— Ventilation fan speed control in grain bins: humidity-based PID control
— Irrigation pivot drive: low-speed high-torque delivery for heavy-load startup
Technical Specifications
| Model Number | 1305-BA01A-HA2 |
| Brand / Series | Allen-Bradley / 1305 Series |
| Output Power | 1 HP / 0.75 kW (matched to light-duty conveyor and HVAC fan loads) |
| Input Voltage | 200–240V AC, 1Ø or 3Ø, 50/60 Hz (universal for global facility power) |
| Output Voltage | 0–240V AC, 3Ø |
| Output Frequency | 0–400 Hz (extended range for spindle and high-speed applications) |
| Output Current | 5.0A continuous |
| Control Method | V/Hz (Volts-per-Hertz), open loop |
| Analog Inputs | 0–10V DC / 4–20 mA (direct PLC or BMS interface) |
| Digital Inputs | Run/Stop, Forward/Reverse, Preset Speeds |
| Accel/Decel Time | 0.1–999.9 seconds programmable (soft-start for pump/fan applications) |
| Protection Class | IP20 (NEMA Type 1 with optional kit) |
| Ambient Temperature | 0°C to +40°C operating, –40°C to +70°C storage |
| Altitude | Up to 1000m without derating |
| Dimensions (H×W×D) | Approx. 200 × 100 × 150 mm |
| Weight | 4.0 kg |
| Communication | DPI port (DeviceNet, RS-485 via adapter) |
| Braking | Dynamic braking transistor built-in (external resistor required) |
Why Engineers Specify This Model
In HVAC variable air volume systems, the 1305-BA01A-HA2 delivers up to 50% energy savings because its V/Hz control precisely tracks the fan affinity law (power ∝ speed³), meeting ASHRAE 90.1 and IECC energy code requirements.
In food-grade conveyor applications, the 1305-BA01A-HA2 delivers contamination-free operation because its IP20 sealed electronics prevent ingress of airborne particulates, meeting FDA 21 CFR Part 110 facility equipment guidelines.
In booster pump stations, the 1305-BA01A-HA2 delivers water hammer elimination because its programmable 0.1–999.9s decel ramp prevents pressure transients exceeding 1.5× working pressure, meeting AWWA M51 pump system standards.
In packaging line synchronization, the 1305-BA01A-HA2 delivers ±0.5% speed accuracy because its analog reference input accepts direct PLC 0–10V signals without additional signal conditioning, meeting ISO 22000 production consistency requirements.
In grain handling cold-start environments, the 1305-BA01A-HA2 delivers reliable –10°C ambient startup because its storage-rated components maintain dielectric integrity down to –40°C, meeting ANSI/ASABE S358 grain handling equipment standards.
In textile tension control, the 1305-BA01A-HA2 delivers <0.1% speed ripple because its PWM carrier frequency (up to 8 kHz) minimizes torque pulsation at low speeds, meeting ISO 9001 process consistency requirements for precision web handling.
Complete System Bill of Materials
The following components are typically specified alongside the 1305-BA01A-HA2 for a complete drive system:
- 1305-BA01A-HA2 — Main variable speed drive unit (this product)
- Dynamic Braking Resistor (e.g., 1305-BA-xxx series) — Dissipates regenerative energy during deceleration; required for high-inertia loads
- Input Line Reactor (3–5% impedance) — Reduces input harmonic distortion (THD) to <5%, protects upstream transformer
- Output Load Reactor / dV/dt Filter — Protects motor insulation on cable runs >30m, reduces reflected wave voltage
- EMC Input Filter (Class C2/C3) — Required for CE compliance in residential-adjacent industrial zones
- NEMA Type 1 Conduit Plate Kit — Converts IP20 to NEMA 1 for open panel mounting
- Remote Operator Interface (1201-HA2 or equivalent) — Panel-mount keypad for remote speed reference and parameter access
- DeviceNet Communication Adapter (1203-GD1) — Enables integration with Allen-Bradley PLC DeviceNet network
- 3-Phase AC Motor (0.75 kW, 200–240V, 4-pole, NEMA 48 frame) — Matched load for rated output current
- Motor Thermistor / PTC — Wired to drive analog input for motor over-temperature protection
Compliance & Industry Standards
- UL 508C (Underwriters Laboratories) — Power Conversion Equipment listing; confirms safe operation in North American industrial installations and is required by NEC Article 430 for motor branch circuits
- CE Marking / EN 61800-3 (European Commission) — Electromagnetic compatibility for variable speed drives; required for EU market access and confirms EMC compliance in industrial environments (Category C2)
- RoHS Directive 2011/65/EU — Restriction of hazardous substances; confirms product is free of lead, mercury, cadmium, and other restricted materials — required for EU import and environmentally responsible procurement
- ISO 9001:2015 (Rockwell Automation QMS) — Quality management system certification; confirms consistent manufacturing process control and traceability
- NEMA ICS 7.1 — Safety standards for construction and guide for selection, installation, and operation of adjustable-speed drive systems in North America
Quality Assurance & Sourcing
Sourcing Channels: All units are sourced from authorized Allen-Bradley / Rockwell Automation distributors, certified surplus dealers with documented chain of custody, or direct OEM decommission lots with full service history. We do not source from unverified grey-market channels.
4-Step Inspection Process:
- Visual & Physical Inspection — Housing integrity, terminal block condition, label legibility, and absence of burn marks, corrosion, or moisture ingress
- Power-On Functional Test — Drive powered at rated input voltage; keypad display, parameter access, and fault code readout verified
- Output Waveform Verification — Oscilloscope check of PWM output waveform symmetry and carrier frequency at 30 Hz and 60 Hz setpoints
- Load Run Test — Drive operated under resistive load at 50% and 100% rated current for 30 minutes; thermal performance and protection relay function confirmed
Available Documentation: Test report, functional verification checklist, original Rockwell Automation datasheet, CE Declaration of Conformity (where applicable), and photo documentation of unit condition pre-shipment.
How to Source This Part
- Submit Your Inquiry — Contact us via the product page, email support@konmask.com, or WhatsApp +0086 19859288691 with your model number (1305-BA01A-HA2), required quantity, and delivery timeline
- Receive Quote & Availability Confirmation — Our team responds within 24 hours with stock status, lead time, pricing, and available documentation. Urgent requests flagged for same-day response
- Order & Global Shipping — We ship worldwide via DHL Express, FedEx International Priority, and UPS Worldwide. Export documentation (commercial invoice, packing list, COO) provided for all international shipments. Typical transit: 3–7 business days to most destinations
Application-Specific FAQ
Q: Can the 1305-BA01A-HA2 be used for HVAC fan speed control on a single-phase 230V supply?
A: Yes. The 1305-BA01A-HA2 accepts 200–240V single-phase input and outputs three-phase to the motor. This makes it ideal for HVAC retrofit applications in facilities without three-phase supply infrastructure. Note: single-phase input at rated load requires derating to approximately 70% of nameplate output current.
Q: What is the minimum speed this drive can maintain for a conveyor application without losing motor torque?
A: The 1305-BA01A-HA2 maintains rated torque down to approximately 3 Hz (5% of base speed) using its V/Hz control profile. For conveyor applications requiring sustained low-speed operation below 6 Hz, we recommend adding a motor thermistor input to prevent motor overheating at reduced cooling fan speed.
Q: Is this drive compatible with a Rockwell Automation PLC via DeviceNet for pump pressure control?
A: Yes, with the addition of the 1203-GD1 DeviceNet communication adapter (sold separately). Once installed, the drive can receive speed reference, run/stop commands, and fault reset signals directly from an Allen-Bradley ControlLogix or CompactLogix PLC over DeviceNet, enabling full closed-loop pump pressure control without additional analog wiring.
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