WEG HVW701 Enclosed Drive Panel – Find comprehensive resources for WEG HVW701 Enclosed Drive Panel, including product catalogs, manuals, price list, programming guides, fault, alarm, warnings & support. Get expert assistance for troubleshooting and optimization.
WEG HVW701 Enclosed Drive Panel is specifically designed for HVAC-R (Heating, Ventilation, Air Conditioning, and Refrigeration) applications, offering reliable and energy-efficient motor control.
Features
WEG, a leading supplier of AC motor control technology and automation products, has enhanced the line of variable frequency drives for heating, ventilation, air conditioning and refrigeration. The WEG HVAC-R Portfolio of products is designed with the features and functions required for HVAC systems, with the same reliability, robustness and energy efficient control known in our industrial lines. WEG now brings this technology to hospitals, airports, office buildings, hotels, shopping centers as well as other commercial and industrial facilities.
Base Drive Characteristics
- Dual DC bus chokes and RFI filter built-in for all frame sizes;
- Conformal coated circuit board;
- Energy Saving function;
- BACnet, Metasys N2 and Modbus-RTU embedded using the RS-485 port;
- Thermal Management for drive fan control;
- Three PID controllers, each offers Direct/Reverse PID Control Selection.
Performance Characteristics
- Overload capacity: nominal 110% for 60sec. (150% peak);
- Adjustable accel/decel: 0.0 to 900.0 Sec.;
- Controlled speed range: 1:20;
- Critical frequency avoidance: 3 selectable, adjustable bands;
- Torque-limiting: 30-180%;
- Torque boost: full range, automatic;
- Fault Auto-Reset with programmable time interval;
- Feedback signal loss detection;
- Serial communications loss detection;
- “Up/Down” floating point control capability (PI);
- Sleep function;
- Run-permissive input.
Application
- Airports;
- Shopping malls;
- Sports facilities;
- Schools and universities;
- Hotels and restaurants;
- Condominium and residential;
- Municipal and commercial buildings;
- Cooling towers;
- Boiler circulation pumps;
- Chill water circulation pumps;
- Exhaust fans;
- Clean room air handling;
- Tunnel ventilation.
Drive and Motor Protection Features
- Current-limited stall prevention;
- Heat sink over-temperature, speed fold-back;
- Bi-directional start into rotating motor;
- Optically-isolated controls;
- Output short circuit protection: Phase-phase and phase-neutral;
- Output Ground Fault protection;
- Electronic motor overload: UL;
- Fault display: last 10 faults.
Control Features
- Power saving flux optimization (energy saving algorithm): stator flux is controlled so that motor losses are reduced increasing motor efficiency;
- Fire mode: forces the drive to override its internal faults and protections, allowing the drive and motor to run during extreme conditions;
- Dry pump: monitors motor torque and prevents the pump from running with no load;
- Sleep / wake-up mode: prevents prolonged motor operation at low speeds for a programmable amount of time. Wake-up mode determines when the drive and motor resume normal operation;
- Bypass function: allows the VFD to be by-passed and the motor to be run across the line;
- Short cycling protection: prevents repetitive motor restarting after short periods of time;
- Broken belt protection: monitors motor torque preventing it from running with no load in case of a broken belt or coupling;
- Filter maintenance alarm: a warning for filter maintenance is displayed on the keypad based on an adjustable time interval (time is programmed in the drive);
- PTC function: using drive I/O, PTC thermal sensors can be monitored to prevent motor overheating;
- Main PID controller: internal PID loops available for drive control.