Reciprocating Compressor VFD
Reciprocating Compressor VFD
(OP)
Hi Guys,
I am here in Korea with a high pressure diaphragm pump (1,500 psi) driven from an ABB ACS510/550. The problem is it won't pull away under load (800 psi is no problem). We had the ABB rep in to solve a low speed excessive curent problem, I'm told he changed the V/F curve to linear but I suspect we need something more. The manual and display are in Korean and I don't seem able to download an English version.
If someone could suggest a fix and perhaps an English parameter listing that would be a great help.
Thanks in advance
Roy
I am here in Korea with a high pressure diaphragm pump (1,500 psi) driven from an ABB ACS510/550. The problem is it won't pull away under load (800 psi is no problem). We had the ABB rep in to solve a low speed excessive curent problem, I'm told he changed the V/F curve to linear but I suspect we need something more. The manual and display are in Korean and I don't seem able to download an English version.
If someone could suggest a fix and perhaps an English parameter listing that would be a great help.
Thanks in advance
Roy





RE: Reciprocating Compressor VFD
Does it have an unloader?
Keith Cress
kcress - http://www.flaminsystems.com
RE: Reciprocating Compressor VFD
1. Are you running the drive in sensorless vector or scalar mode?
2. Is there any gearing or belt/pulleys between the motor and the compressor?
3. You can certainly download an Instruction Manual in English from the ABB website.
Let me know on the above
RE: Reciprocating Compressor VFD
No it doesn't have an unloader just a gearbox with a crank and 3 recipricating diaphragms Lewa is the brand, new installation. We have e-mailed Lewa but no response yet
Thanks for the response
Roy
RE: Reciprocating Compressor VFD
If you cannot find a local contact, call 800.752.0696 option 1, then option 1, and ask for contact information in your area.
RE: Reciprocating Compressor VFD
Does the cable length 50 meters and lack of Line/Load reactors have any effect on starting torque?
Roy
RE: Reciprocating Compressor VFD