Section 5
How to adjust VFD parameters • Press mode button, P0 will display • Use dial wheel to adjust to desired P number, then press set to go into that parameter • Use the dial wheel to adjust the parameter, then press set to accept it
AMU VFD Parameters to Adjust: • P77 = 2 – Unlocks the VFD • P1 = hz setting – 60hz is maximum, adjust to lower value to slow the AMU fan down • P55 = same as P1 • P125 = same as P1 • C2 = same as P1 • Ensure the value in P42 is lower than the value in P1 • When complete, set P77 back to 1 to lock the VFD
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