Nat_Lortie
Electrical
- Jan 8, 2021
- 4
I have a Chain belt conveyor that is controlled by a VFD.
It lacks the input current to get going, here is scenario.
Motor is 1800RPM FLA = 20Amps
Across the line it starts up fine and pulls 12Amps after start-up.
On the VFD it hmms but doesn't have sufficient In-rush current to start.
We actually use a 2*4 to help turn the pulley and the motor finally goes from 0 to 60HZ with our help.
Once it is turning, we can vary the speed (30-60hz) with no problem and the amps vary from 8 to 12 amps.
I was under the impression a Constant torque VFD would give me the necessary torque to get going.
Any suggestions or ideas?
Thanks,
It lacks the input current to get going, here is scenario.
Motor is 1800RPM FLA = 20Amps
Across the line it starts up fine and pulls 12Amps after start-up.
On the VFD it hmms but doesn't have sufficient In-rush current to start.
We actually use a 2*4 to help turn the pulley and the motor finally goes from 0 to 60HZ with our help.
Once it is turning, we can vary the speed (30-60hz) with no problem and the amps vary from 8 to 12 amps.
I was under the impression a Constant torque VFD would give me the necessary torque to get going.
Any suggestions or ideas?
Thanks,