Final Adjustments
3-20 Manual # 42-02-2P24
Car Overshoots or KEB E.OL/E.OP or MAG Mtr Overload/Overvolt Flt
• Refer to drive manual for error definition and troubleshooting instructions
• Check counterweighting is correct.
• Decrease Standard Acceleration, F7:168, Standard Deceleration F7, 169, Standard Roll
Jerk F7/ 166, and Standard Stop Jerk, F7, 167.
• Increase drive gains, KEB LF.31 and LF.32 or MAG A0/A1 RESPONSE.
• Shut off power. Wait 1 minute to drain DC voltage from dynamic braking circuit. Verify no
DC voltage with voltmeter.
• Check value of braking resistance (RB resistors). Check circuit connections and slip rings.
(Approximately 3 times the measured brake coil resistance is a good starting point.)
Car Oscillates at Contract Speed
• Verify all motor parameters are correctly set and encoder is mounted well (no vibration).
• KEB/TorqMAX: Verify gain parameters KEB, A.LF.31 and A.LF.32 are not set too high.
• Magnetek: Verify Estimation of System Inertia, A0/A1 Inner Loop Xover, A0/A1 Gain
Reduce Mult, and A0/A1 Gain Chng Level. Verify A0/A1 Response is not set too high.
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