YASKAWA A1000 HHP Programming Manual

Contents

Cause Possible SolutionsThe wrong password was entered.• If the password entered to A1-04 does not match the password saved to A1-05, then drivesettings cannot be changed.• Reset the password.If you cannot remember the password:• Scroll to A1-04. Press STOP and simultaneously. Parameter A1-05 will appear.• Set a new password to parameter A1-05.Undervoltage was detected. • Check the drive input power voltage by looking at the DC bus voltage (U1-07).• Check all main circuit wiring.u Motor Does Not Rotate Properly after Pressing RUN Button or after Entering ExternalRun Commandn Motor Does Not RotateCause Possible SolutionsThe drive is not in the Drive Mode. • Check if the DRV light on the digital operator is lit.• Enter the Drive Mode to begin operating the motor.was pushed.Stop the drive and check if the correct frequency reference source is selected. If the operator keypad shall be thesource, the LO/RE button LED must be on. If the source is REMOTE, it must be off.Take the following steps to solve the problem:• Push .• If o2-01 is set to 0, then the LO/RE button will be disabled.Auto-Tuning has just completed.• When Auto-Tuning completes, the drive is switched back to the Programming Mode. The Run command willnot be accepted unless the drive is in the Drive Mode.• Use the digital operator to enter the Drive Mode.A Fast Stop was executed and hasnot yet been reset. Reset the Fast Stop command.Settings are incorrect for the sourcethat provides the Run command.Check parameter b1-02 (Run Command Selection).Set b1-02 so that it corresponds with the correct Run command source.0: Digital operator1: Control circuit terminal (default setting)2: MEMOBUS/Modbus communications3: Option cardThere is faulty wiring in the controlcircuit terminals.• Check the wiring for the control terminal.• Correct wiring mistakes.• Check the input terminal status monitor (U1-10).The drive has been set to accept thefrequency reference from theincorrect source.Check parameter b1-01 (Frequency Reference Selection 1).Set b1-01 to the correct source of the frequency reference.0: Digital operator1: Control circuit terminal (default setting)2: MEMOBUS/Modbus communications3: Option card4: Pulse train input (RP)The terminal set to accept the mainspeed reference is set to the incorrectvoltage and/or current.If the frequency reference is set at terminal A1, check parameter H3-01 for the correct signal level selection. Ifterminal A2 is used, check DIP switch S1 parameter H3-08. If terminal A3 is used, check parameter H3-08.Selection for the sink/source modeand the internal/external powersupply is incorrect. Check jumper S3.Frequency reference is too low. • Check the frequency reference monitor (U1-01).• Increase the frequency by changing the maximum output frequency (E1-09).Multi-function analog input is set upto accept gain for the frequencyreference, but no voltage (current)has been provided.• Check the multi-function analog input settings.• Check if analog input A1, A2, or A3 is set for frequency reference gain (H3-02, H3-10, H3-06 = 1). If so, checkif the correct signal is applied to the terminal. The gain and the frequency reference will be 0 if no signal isapplied to the gain input.• Check if H3-02, H3-10, and H3-06 have been set to the proper values.• Check if the analog input value has been set properly. (U1-13 to U1-15)2.10 Troubleshooting without Fault DisplayYASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual 2272 Troubleshooting