Fsanq
Mechanical
- Jan 28, 2021
- 1
Our setup:
230 VAC/28 VDC converter -> 28 VDC battery -> Motor controller (28 VDC 15.6 kHz PWM) -> PCB (DC PWM to EC) -> EC motor
PCB has two wires (+/-) going in and four going out (GND, direction, supply and speed).
Motor is inside a drum which is moving a load back and forth (with the help of other drum motors):
stopped -> CW -> (ramped up) idle/unloaded -> loaded -> idle/unloaded (ramped down) -> stopped - > CCW (ramped up) idle/unloaded -> loaded -> idle/unloaded (ramped down) -> REPEAT
One cycle is 15 seconds.
I need the power "flow" in absolute values on both sides. Also, I’m looking for continuous (or moving average) values.
Available equipment:
Amp clamp (Fluke i30s), voltage probes and 50 MHz bandwidth logging (PicoScope 2406B).
Can I use this equipment? How do I calculate it?
Getting confused with DC, AC+DC and RMS/true RMS...
230 VAC/28 VDC converter -> 28 VDC battery -> Motor controller (28 VDC 15.6 kHz PWM) -> PCB (DC PWM to EC) -> EC motor
PCB has two wires (+/-) going in and four going out (GND, direction, supply and speed).
Motor is inside a drum which is moving a load back and forth (with the help of other drum motors):
stopped -> CW -> (ramped up) idle/unloaded -> loaded -> idle/unloaded (ramped down) -> stopped - > CCW (ramped up) idle/unloaded -> loaded -> idle/unloaded (ramped down) -> REPEAT
One cycle is 15 seconds.
I need the power "flow" in absolute values on both sides. Also, I’m looking for continuous (or moving average) values.
Available equipment:
Amp clamp (Fluke i30s), voltage probes and 50 MHz bandwidth logging (PicoScope 2406B).
Can I use this equipment? How do I calculate it?
Getting confused with DC, AC+DC and RMS/true RMS...