Johnson Controls® Variable Speed Drives Series III (VSDs) control the speed of AC induction motors used in fan and pump applications. VSD Series III include the following key enhancements:
Sensor/Actuator (SA) bus is built-in. There is no option card.
Standard conformal coating
Available 100K short circuit current rating (SCCR) for disconnect and bypass models
Service switch option on bypass models
Broken belt software feature
Damper end switch logic for bypass
Impact resistant one piece plastic enclosure
Features:
Integrated common mode reduction 5% DC link choke with input surge protection
Variable torque rated for HVAC and HVACR demands
110% variable torque overload
Type 1/IP21 and Type 12/IP54 enclosures available for open drive and drive only models
Real-time clock to support calendaring and programmable logic controller (PLC) functionality
Hand-off- auto (HOA) graphic LCD display and keypad to support simple menu navigation and on-screen
diagnostics
Auto operation from keypad and two configurable soft keys
Conformal coated control and power boards standard provides greater resistance to environmental
containments.
Power the control logic from an external auxiliary control panel for internal drive functions and fieldbus if
necessary
Standard Input/Output (I/O): 8 digital inputs (DI), 1 digital output (DO), 2 analog inputs (AI), 2 analog outputs
(AO), 2 form C relays (FC), 1 form A relays (FA)
Standard communications used to not delay a job as a result of waiting for option cards: BACnet/IP and MS/TP,
Modbus TCP, Modbus Remote Terminal Unit (RTU), Johnson Controls SA bus
Two expansion slots to support additional I/O Variable Speed Drives Series III: Open, Bypass, and Disconnect Models Product Bulletin 2
Quick disconnect terminals for I/O connections to support fast and easy installation
Multi-color pilot light is optional on bypass and standard on disconnect models
Three contactor manual bypass with multi-color pilot light for when no specification is provided
Two contactor bypass with isolation fusing, manual bypass and mulit-color pilot light to meet isolation fusing
specifications
Redundant Auto, Run and Fault LEDs located to replicate keypad LEDs in the event the keypad is removed
Two contactor bypass with optional service switch for specification matching
100K SCCR for bypass panels as a standard option to keep solution price competitive when 100K SCCR is
non-negotiable
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.