Varispeed A2000 Series

NOTE:  THIS IS THE UPDATED VERSION OF THE VARISPEED A2000 Series.

 The Varispeed chassis control utilizes modular control to  provide a low-cost, reliable, variable speed SCR drive for  PM and Shunt Wound DC motors. Models with the “R” suffix contain the APRM®* which provides anti-plug  “instant” reverse and solid state dynamic braking. All models are equipped with our exclusive Plug-in  Horsepower Resistor®. It eliminates the need for recalibrating IR Comp and Current Limit when the control is used on various horsepower motors. The controls also contain Inhibit™ which allows for electronic switching of the armature voltage and Auto Inhibit® which provides rapid safe switching of the AC line. The Varispeed controls are built on a rugged  aluminum heatsink and contain AC line and armature  fusing, a 5K ohm remote potentiometer, and a barrier  terminal block. In lieu of the potentiometer, the control can  be operated in a voltage following mode by supplying an  isolated analog signal (0-9VDC) to the input terminals  P2 (+) and F-. Adjustment trimpots are provided for MIN,  MAX, IR COMP, CL, ACCEL and DECEL. 

STANDARD FEATURES – 

• Tachometer or Armature Feedback 

• Plug-in Horsepower Resistor

• Built-in AC Line and Armature  Fuses 

• MOV Transient Protection • Trimpots: MIN, MAX, IR, CL, ACCEL, DECEL 

• Rugged Aluminum Heatsink

• Voltage Following • Auto Inhibit, Inhibit and Enable

• CL LED Indicator 

• Forward-Brake-Reverse 

• Anti-plug Instant Reverse • Run-Brake-Jog

• Auxiliary Trimpot for Speed Adjustment 

• Rapid Cycling 

Speed Range (Ratio) ...................................................... 50:1 

Load Regulation  (0 – Full Load, 50:1 Speed Range)(% Base Speed) ...... 1* 

Line Voltage Regulation (At Full Load, ± 15% Line Variation) (% Base Speed).... 1/2*

Control Linearity (% Speed vs. Dial Rotation) .............................................. 2 

CL Torque Range (% Full Load) .......................................................... 0 – 200 

ACCEL/DECEL Time Range (Secs.) .......................... .2 – 10 

MIN Speed Trimpot Range (% Full Speed) ........................................................ 0 – 30* 

MAX Speed Trimpot Range (% Full Speed) .................................................... 50 – 120* 

Maximum Allowable Ambient Temperature (At Full Rating °C/°F) .............................................. 45/113 

Maximum Number of Starts/Stops or Reversals (Operations/Minute).......................................................... 30** 

 * Performance is for 90V PM motors on 115 VAC and 180V PM motors on 230 VAC. ** Based on a brake time of one (1) second. For increased operations per minute and longer brake time, contact factory 

Part Number       Voltage    Horsepower 

176B6010               120volt     1 HP, chassis

176B6011                120volt     1 HP, chassis

176B6012               120volt     1 HP, Enclosure

176B6014               120volt     1/2 HP, chassis

176B6016               120volt     1/2 HP, chassis

176B6017               120volt     3/4 HP, chassis

176B6018               240volt    1 HP, chassis

176B6019               240volt    1 HP, chassis

176B6020              240volt    1 1/2 HP, chassis

176B6021               240volt    2 HP, chassis

176B6022              240volt    3 HP, chassis

176B6023              240volt    3 HP, Enclosure

176B6025              120volt     1 HP, chassis