ATOM Three-Phase SCR Power Controllers
Control Concepts’ ATOM is an ultra-compact, low-cost microprocessor-based power controller to assist with the control of AC loads.
Resistive or transformer-connected loads can be controlled in Zero Cross, Fast Zero Cross, or SSR Random Relay firing modes. Output is controlled linearly with respect to the command setpoint and can be set to command the RMS value of the voltage or current.
ATOM Power Controllers are available in current ratings from 16 to 80A. Auto-ranging voltage circuitry enables main line voltage from 24 – 600 Vac (45 – 65 Hz), eliminating the need for hardware jumpers or stocking multiple controllers for international voltages. A separate 24 Vdc power source supplies the control electronics and maintains critical communications to your control system when the mains are absent on digital units.
Status LEDs make operation and troubleshooting simple. A plug-n-play USB interface and free Control Panel app for your Windows PC or Android device further simplify installing and configuring the controller to its designated application. For multiple controllers, controller settings can be duplicated by simply loading a configuration file saved from a previous unit.
Depending on the ATOM model, setpoints can be controlled through either the analog or digital fieldbus interface. The factory-configured analog setpoint signal range is 0 – 5 Vdc,setpoints are field scalable from 0 – 10 Vdc or 0 – 20 mA
Available Features and Benefits
Input
- Auto-Ranging Input Voltage: 24 – 600 VAC +10/-15%
- Three Phase AC
- 2 Leg / 4 SCR
- 3 Terminals in / 3 Terminals out for simple installation
Output
- 0 – 600 VAC or Max Line Voltage
- Up to full frame rating at 122 ℉ / 50 ℃, 6,000 ft
Control Features
Microprocessor based control with Digital Phase Lock
Control Modes:
- Zero Cross, Fast Zero Cross, or SSR On/Off Relay mode
Feedback Modes:
- Feed-forward Voltage, RMS Current, On/Off Relay mode, or Proportional (Open Loop)
Indicator LEDs
- Power (24V power, AC line status, phase loss indicator)
- Status (output state, alarms, limits, Partial Load Fault)
Analog Input (Analog and Digital models only)
Voltage:
- 0-10V range (32VDC max in relay mode)
- 200k Ohm impedance Current
Current:
- 0-20mA range
- 249 Ohm impedance
Product Dimensions
| 16 A | H: 3.50 [88.9] | W: 2.80 [71.1] | L: 4.37 [110.9] |
|---|---|---|---|
| 32 A | H: 3.50 [88.9] | W: 2.80 [71.1] | L: 5.97 [151.6] |
| 50 A | H: 5 [127.0] | W: 2.80 [71.1] | L: 5.97 [151.6] |
| 80 A | H: 5 [127.0] | W: 2.80 [71.1] | L: 5.97 [151.6] |
Available Product Variations
| Catalog Number | Phase | Circuit Power | Frame Current | Comms | Setpoint Range | Firing Mode | Full Scale | Limits | Shorted SCR Enable | PLF / Open Load | Relay Mask |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A3A050A-3C000-000-00-000 | 3 | 24 vdc Digital | 50 | Analog | 0 / 10V | Zero Cross | SSR or PROP | Default - Fixed 105% of frame rating | Not Purchased | Not Purchased | 000 |
Downloadable PDF
To learn more about Control Concept’s range of SCR Power Controllers, refer to this data sheet:
