Help with SCR Power Controllers specifications:
Operating Specifications
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| SCR Control | |||
| Your choices are... | |||
| Phase Angle Fired | SCR gate is fired at a variable point in each half-wave to control output. | ||
| Zero Crossing Fired | SCR gate is fired for a variable proportion of half-waves to control output. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Phase | |||
| Your choices are... | |||
| Single Phase | |||
| Three-Phase (2-leg) | |||
| Three Phase (3-leg) | |||
| Other | Any non-listed control signal. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Operating Voltage | |||
| Your choices are... | |||
| <100 VAC | |||
| 100-199 VAC | |||
| 200-299 VAC | |||
| 300-399 VAC | |||
| 400-499 VAC | |||
| >500 VAC | |||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Maximum Current: | This is the maximum rated current of the SCR power controller. | ||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
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Operating Features
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| Command Signal | |||
| Your choices are... | |||
| Analog Voltage (e.g. 0-5V) | Output of controller is regulated by varying an analog input voltage signal. | ||
| Analog Current (e.g. 4-20 mA) | Output of controller is regulated by varying an analog input current signal. | ||
| Potentiometer | Output of controller is regulated by varying a potentiometer, often in the form of a dial on the front panel. | ||
| Other | Any non-listed command / control signal configuration. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Control Feedback | |||
| Your choices are... | |||
| Output Voltage Control | Command signal controls voltage output. | ||
| Output Current Control | Command signal controls current output. | ||
| Output Power Control | Command signal controls power output. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Diagnostic Indicators? | Visual indicators during ON condition (needles, LEDs, etc.). | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Soft Start? | Provides for a gradual ramp-up of output for load protection. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Failure Detection / Alarm? | Circuitry that detects failures such as short circuits or missing cycles and provides interlock signal or audible alarm. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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Mounting
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| Your choices are... | |||
| Open Panel | Wall-mounted with open, accessible electrical components. | ||
| Enclosed Wall Mount | Enclosure provided along with mounting holes on the enclosure. | ||
| Rack Mount | Designed to be mounted in a rack assembly. | ||
| DIN Rail | Designed for mounting on a standard DIN Rail. | ||
| Free-standing / Cabinet | Stands on floor or integrally mounts in cabinet. | ||
| Other | Unlisted mounting method. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Operating Temperature: | Full required range of operating temperature. | ||
| Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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