Products DC Motor and Controllers
Vari Speed® A2000 DC Motor Speed Controllers
Product Details
The Vari Speed® A2000 is compact, rugged, reliable and flexible. Available in 1/2 - 3 HP control rating configurations, the Vari Speed A2000 Series incorporates surface mount technology to reduce package size and improve reliability.
The Vari Speed A2000 may be ordered with isolation, NEMA 12 or NEMA 4 Enclosures.- Compact, extremely rugged speed drive for standard permanent magnet or would-field DC motors
- 120 or 240 VAC line input
- Nine models rated for 1/8 to 3 HP
- Available in chassis, NEMA 12 or NEMA 4 enclosure
- LED status indicators for Power On, Run, and Current Limits
- Chassis units are UL and cUL listed
Reversing option no longer available. Please contact factory for reversing capabilities.All options available can be installed in field
Isolation
AGBØ provides isolation of non-isolated inputs and allows multiple A2000 controls to be controlled by a single process signal. AGBØ also provides isolated open collector with adjustable time delay for current limit indication, and a speed follower output signal when used with a tachometer.
Potentiometer Kit
Item # 27121 - Includes a 5 K ohm, 1W pot, pre-wired, knob and dial plate
AC000 NEMA 12 enclosure with:
- Run/Jog/Stop switch
- Indicators for Power On, Run and Current Limit
Specifications
Options
- Run/Jog/Stop switch
- Indicators for Power On, Run and Current Limit
AGBØ provides isolation of non-isolated inputs and allows multiple A2000 controls to be controlled by a single process signal. AGBØ also provides isolated open collector with adjustable time delay for current limit indication, and a speed follower output signal when used with a tachometer.
Potentiometer Kit (176B1121)Includes a 5 K ohm, 1W pot, mounting hardware, knob and dial plate.
Operating Conditions
Rated voltage ±10%
AC Line Frequency: 48 to 62 Hz
Elevation:
Up to 3,300 ft. without derating
AGB0 Isolation Option
Isolation provides isolation for non-isolated input command signals. Provides the A2000 with the ability to accept various process speed signals and isolated tachometer feedback inputs. Includes a minimum speed adjustment, range adjustment and run status LED.
AGB0 Application Data
- 0-10 VDC (0-20 mA DC)
- 1-5 VDC (4-20 mA DC)
- 5K, 1W potentiometer (input impedance = 80K ohm)
Contact or solid state (NPN) switching device acceptable
Tachometer input:
20.8V/1,000 rpm; 7V/1,000 rpm
Isolated open collector sinking output signal with adjustable time delay for current limit indication and a speed follower output signal when used with a tachometer. Allows multiple A2000s to be controlled by a single input signal.
Adjustments:- Minimum speed (0-50% of motor base speed)
- Range adjust (0-110% of motor base speed)
- Limit Time Delay (0.2-2.0 sec)
AGB0 Application Output Data
Output:
NPN transistor capable of switching 24 VDC at 250 mA
Speed follower output signal usable with armature or tachometer feedback
Output:
0-10VDC = 0-100% motor base speed
Maximum current: 10 mA
Specification
| Horsepower Range | 1/8 - 1 (120V); 1 - 3 (240V) |
|---|---|
| Line Voltage | 120/240; 1 phase |
| Output: | |
| Armature Voltage (VDC) | 0 - 90 (120V); 0 - 180 (240V) |
| Field Supply (VDC) | 50/100 (120V); 100/200 (240V) |
| Speed Range: | |
| Armature Feedback | 50:1 at full torque |
| Tachometer Feedback | 200:1 at full torque |
| Alarm output | Provides remote indication of an undesirable situation |
| Status indicators | Visual indication of primary control status |
| Speed Regulation: | |
| Armature Feedback | ±2% of base speed (for 95% load change) |
| Tachometer Feedback | ±1/2% of set speed (for 95% load change) |
| Ambient Temperature | 104 ºF (40 ºC) enclosed; 131 ºF (55 ºC) chassis |
| Control Adjustments: | |
| Minimum Speed | 0 to 50% control rating |
| Maximum Speed | 50 to 110% control rating |
| Range (% control rating) | isolation optional |
| Acceleration | 0.5 to 5 seconds |
| Deceleration | 0.5 to 5 seconds |
| IR Compensation | Adjustable (0-25% of rated output) |
| Current Limit | 10-150% control rating |
| Inputs: | |
| Process Signal Input | Optional |
| Tachometer Feedback | 20.8 V/1,000 RPM |
| Process Output | Optional, speed follower |
| Potentiometer | 5K ohm, 1W potentiometer item 176B1121 available as option |
| Reference Supply Voltage | 10 Volts |
| Status Indicator | LEDs for Power On, Run and Current Limit Status |
| UL/cUL Listed | Chassis configurations only |
