7/19/2010 6:47 PM | |
Joined: 2/28/2010 Last visit: 5/23/2024 Posts: 55 Rating: (0) |
Hi Vithani, the analog Inputfrom r752 reads 20mA and Analog Output from r774 reads 20mA. The suprising thing is that the PID is sending about 13mA to the VFD!I cant just figure it out how 13mA is becoming 100% as input? I know there should be something maybe with the scaling of the input signal, but what? Here is my configured parameter list; P304=400V P305=5A P307=Hp P311=1360 P700=2 P1000=2 P1120=10s P1121=10s P2000=50Hz P771=21 P778=4mA P780=20mA P777=0 P779=100 P753=3 P756=2 P757=4mA P758=0 P759=20mA P760=100 And find attached below a picture of the input and output of the PID controller and notice the difference in input and output! Please help! AttachmentAnalog Error.zip (146 Downloads) |
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