VARISPEED R4000 pages
Vari Speed® R400 speed/torque control
for VA to 2 HP DC motors
The Vari Speed9' R400 is a full-wave
DC regenerative control that provides
high performance four quadrant
speed and torque control. The R400
solid state controller converts single
phase AC line power into an adjust-
able DC power to control 1/4 to 2
horsepower DC motors.
The R400's flexible design is easily
selectable for speed or torque mode,
tachometer voltage, dual voltage and
for horsepower size. The R400 is
designed with today's most desirable
features including isolated input
signals, status indicators, alarm
outputs. When performing frequent
directional changes, the R400 trans-
fers excess system energy back to
the AC line rather than wasting
additional energy by the use of a
dynamic brake resistor.
The R400 is designed, engineered
and manufactured in the USA, and is
UL and cUL listed.
Features
• Excellent regulation performance
• Fast acting current limit
• Starts into a rotating motor
• 50 or 60 Hz selectable
• Provides 150% load for one minute
• Two and three-wire start-stop
• Disable function
Applications
• Food and beverages
• Machinery and material handling
• Packaging and chemicals
Standard Product Feature | Application Benefit |
Multiple rated unit | One unit can be used for 120 or 240 VAC operation of 1/4 to 2 HP PM or wound field DC motors |
Regenerative control | Allows 4-quadrant operation to maintain complete control of motor and load |
Speed or torque control | Provides proper motor control for application requirements |
Excellent regulation performance | Improves overall system operation |
Fast acting current limit | Can quickly react and compensate to load changes |
2- or 3-wire start/stop | Provides flexibility in system logic |
Isolated logic inputs | Easy connection of peripheral equipment |
Alarm output | Provides remote indication of an undesirable situation |
Status indicators | Visual indication of primary control status |
150% load capabilities | Extra power for intermittent overloads |
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