Hi
I am attempting to repair a double-cylinder syringe pump,
the work mechanism of this pump is like this
http://www.isco.com/meteringpump/default.asp
the rod in the cylinder will pressurize the fluid in the cylinder.
Here is its problem, when it is powered, the control signal (target pressure or flow rate) is sent, but the stepper motors do not rotate, I tried to rotate the motors when the pump is powered, the detent torque is very big, I can not rotate them by hand, I can do it when power is off.
this pump had two pressure transducers on the top of the two cylinders, the pressure signal is sent back to microprocessor/ controller, it is a close loop control system, normally we can control the pressure and flow rate precisely.
here is the motor drive
http://www.compumotor.com/manuals/drives/RDrive.pdf
http://www.compumotor.com/manuals/drives/MDrive.pdf
suppose the motors and drives are ok, the controller breaks down, which motion control card is good for the pump/stepper motor?
your suggestion and expertise will be appreciated,
Thank you very much
more diecription of the stepper motor
Manufacturer: Compumotor Parker
Industrial AC Hybrid Permanent Magnet Stepping Motor
Model Number: M-106-178
Specifications:
- Voltage: 117VAC
- Max. Current Per Phase: 3A
- Rotor Inertia: 44 oz-in²
- Approximate Dummy Load Inertia: 100 oz-in²
- Recommended Wire Size: 18-16 gauge
- Shaft Diameter: 5/8"
- Motor Diameter: 4 1/4"
- Motor Length (Face to Face w/out Shaft): 7 1/2"
Product Link: Compumotor Motor/Drive Manual
