f 204 and f 205 are proportional and integral parameter to start compensation. f 205 can be set after the elevator run, zero servo time will be set by f 217. delay time f 58 on speed curve of the control sytem must be adjusted (default 0.5s), c 14 is defaulted as 0.8s. incresase f 204, until the traction sheave won't move when the brake opens. if the motor appears oscillation after f 204 is turned up, f204 can be properly turned down. increase f 205, until the traction sheave won't move when the brake opens. see the following for sequence diagram