Pool Main Pump Motor: Difference between revisions
Jump to navigation
Jump to search
→Variable Frequency Drive
Matt Parnell (talk | contribs) |
Matt Parnell (talk | contribs) |
||
| Line 205: | Line 205: | ||
* Use Variable Torque (VT) mode for pump control (power is proportional to the cube of the speed) | * Use Variable Torque (VT) mode for pump control (power is proportional to the cube of the speed) | ||
=== Alternatives Evaluated === | |||
==== GS4-2015 ==== | |||
* Substantially larger: 12.60" L x 7.48" W x 7.48" D (versus 8.15" L x 4.29" W x 6.06" D for the GS3). | |||
* Support for 1-phase operation (not needed for this application). | |||
* Slightly reduced CT/VT ratings: 47A/49A vs. 49A/51A for the GS3. | |||
* Slightly worse low temperature rating: -10 °C vs. -20 °C for the GS3 (not an issue). | |||
* No FOC or torque control mode? | |||
* No USB port? | |||
* Slightly more/better analog/digital I/O options vs. the GS3 (not needed for this application). | |||
* Might not be compatible with permanent magnet AC motors? | |||
== Past Considerations == | == Past Considerations == | ||