eeprom
Electrical
- May 16, 2007
- 482
Hello,
I am looking for a motor speed control device to run a 1.5 Hp motor, could be AC or DC. I need to position a gate up and down, so the motor of course must be reversible. The speed (currently) is a constant 1750 rpm, and so the positioning is done by pulsing the motor on/off with a timer. I would like to replace this using a DC drive and a PI controller. The problem is that the environment is extremely cold, as low as -30 to -40F. A VFD wouldn't live very long in such temperatures. The power is not reliable, and so having a heater on site is also unreliable.
Any ideas on drives that can handle such low temperatures?
thanks
EE
I am looking for a motor speed control device to run a 1.5 Hp motor, could be AC or DC. I need to position a gate up and down, so the motor of course must be reversible. The speed (currently) is a constant 1750 rpm, and so the positioning is done by pulsing the motor on/off with a timer. I would like to replace this using a DC drive and a PI controller. The problem is that the environment is extremely cold, as low as -30 to -40F. A VFD wouldn't live very long in such temperatures. The power is not reliable, and so having a heater on site is also unreliable.
Any ideas on drives that can handle such low temperatures?
thanks
EE