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Bulletin E7 Drive and E7 Bypass Packages for HVAC Fan and Pump Applications

Bulletin E7 Drive and E7 Bypass Packages for HVAC Fan and Pump Applications
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E7 Drive and E7 Bypass Packages for HVAC Fan and Pump Applications

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E7 Drive Design Benefits The E7 drive is an application-specific, variable torque, ac drive designed to meet the needs of the Building Automation System (BAS) marketplace. This drive continues the trend to reduce size and cost while increasing performance and quality. The right solution for centrifugal loads on applications such as: VAV air handler supply and return air fans, outdoor air injection fans, exhaust fans, cooling tower fans, chilled and hot water distribution pumps, constant air volume fan conversions, DX condenser fans, clean room circulating fans, condenser water pumps,...

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Bulletin E7 Drive and E7 Bypass Packages for HVAC Fan and Pump Applications - 3

Communications and Keypad The E7 drive has embedded network communications capabilities, including Johnson Controls Metasys N2 and Siemens APOGEE FLN, with optional interface for the LonWorks® protocol. Extensive parameter selection via serial communication allows efficient management of BAS applications for energy efficiency and closed loop control, without consuming building automation system points. Serial communication allows customers to save wiring costs and BAS points while providing access to all the information accumulated by the drive's internal logic. Commissioning, control...

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Bulletin E7 Drive and E7 Bypass Packages for HVAC Fan and Pump Applications - 4

E7/Bypass Building Automation Ready Package The E7 Bypass packages are designed for optimum performance when used with today’s Building Automation Systems (BAS). The E7 drive with bypass allows motors to be operated from either the drive or directly across the AC line. Bypass capability is selected for any critical application that must have redundant motor control to insure continued operation. The bypass function transfers motor operation from the drive to the AC line via drive isolation contactors and a bypass contactor. Our Safety Interlock enables building safety devices (i.e....

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Bulletin E7 Drive and E7 Bypass Packages for HVAC Fan and Pump Applications - 5

• Input Fuses Digital Outputs [ I J Customer Supplied Interface

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Bulletin E7 Drive and E7 Bypass Packages for HVAC Fan and Pump Applications - 6

E7 and E7/Bypass Packaging Additional Packages Yaskawa can design and build drive packages to meet any HVAC application need, from custom panels to drives in NEMA 3R enclosures. Contact us for configuration assistance. Common package designs include: Soft-Start Bypass Package Allows one drive to control two or more motors simultaneously. Note: all motors will run at the same speed. Drive must be sized to handle the total full load amps of all connected motors. Controls two motors in lead / lag scenarios allowing the operator to specify which motor is to be operated via selector switch or...

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Bulletin E7 Drive and E7 Bypass Packages for HVAC Fan and Pump Applications - 7

E7 Drive Rated Input Voltage Protected Chassis Protected Chassis Note that weight represents drive weight only, not shipping weight (2) All NEMA 1 Enclosures (3) Weight may vary with options; maximum weight of bypass with all options is listed (1) Rated Input Voltage

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Bulletin E7 Drive and E7 Bypass Packages for HVAC Fan and Pump Applications - 8

Specifications Performance Features Design Features Service Conditions • VT Ratings: 1/2-150 HP, 208 VAC 1/2-150 HP, 230/240 VAC 1/2-500 HP, 480 VAC • Overload capacity: 110% for 60 sec (150% peak) • Starting torque: 100% at 3 Hz • DC injection braking: at start or stop, adjustable, current limited (antiwindmilling) • Motor preheat function • Adjustable accel/decel: 0.1 to 6000 sec. • Controlled speed range: 40:1 • Critical frequency rejection: 3 selectable, adjustable bands • Energy $aving control • Power loss ride-thru: 2 sec • Auto restart after power loss or resettable fault,...

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