Trips & Fault Finding 10-8
AC30V series Variable Speed Drive
Fault Finding
Drive will not power-up Fuse blown Check supply details, fit correct fuse.
Check Product Code against Model No.
Faulty cabling Check all connections are correct/secure.
Check cable continuity
Faulty cabling or connections wrong
Check for problem and rectify before replacing with
correct fuse
Faulty drive Contact Parker
Cannot obtain power-on state Incorrect or no supply available Check supply details
Motor will not run at switch-on Motor jammed Stop the drive and clear the jam
Safe Torque Off circuit active. Check the STO
connections then power the drive off and on to clear
any latched STO fault.
Motor runs and stops Motor becomes jammed Stop the drive and clear the jam
Open circuit speed reference
potentiometer
Check terminal