67
CONVEYOR WILL NOT DRIVE FORWARD, BUT WILL DRIVE IN REVERSE
Check:
Bumper is not returning fully forward
Bumper switch is not making while bumper is fully forward
Extend limit switch is not returning to neutral position (center position)
Extend limit contacts in limit switch are closed (operator rod is on something or contacts are
stuck)
Wiring between Forward contact (joystick or selector switch) and bumper switch
Wiring between bumper switch and PLC input
CONVEYOR WILL NOT DRIVE FORWARD OR REVERSE
Check:
Jumper on AC frequency drive’s terminals 1 and 2 (must be in place)
AC frequency drive’s common control wiring to Forward/Reverse contacts (joystick or
selector switch)
AC frequency drive has faulted out (overload faults, shown as PF, will reset themselves in
approximately 30 seconds after no input to forward or reverse controls)
Three phase power to AC frequency drive
Output from AC frequency drive
Traversing Motor
Wiring from AC frequency drive to motor
Parameters in AC frequency drive have changed from values shown in list
CONVEYOR WILL NOT STEER LEFT OR RIGHT (power steering models only)
Check:
Power to joystick steering contacts, fuse in main electrical panel
Power through joystick contacts when steering
Power to linear actuator
Linear actuator capacitor
Troubleshooting the Electrical System
(cont)
FMH Conveyors Operator’s Manual
BestReach Rigid Belt Conveyor
Summary of Contents for FMH BestReach
Page 27: ...26 Assembly Rear Suspension FMH Conveyors Operator s Manual BestReach Rigid Belt Conveyor...
Page 28: ...27 Assembly Front Suspension FMH Conveyors Operator s Manual BestReach Rigid Belt Conveyor...
Page 33: ...32 Decal Group Rigid Belt FMH Conveyors Operator s Manual BestReach Rigid Belt Conveyor...
Page 52: ...51 Rigid Belt Schematic STD 480V FMH Conveyors Operator s Manual BestReach Rigid Belt Conveyor...
Page 53: ...52 Rigid Belt Schematic STD 240V FMH Conveyors Operator s Manual BestReach Rigid Belt Conveyor...
Page 60: ...59 Wiring Diagram Limit Switch FMH Conveyors Operator s Manual BestReach Rigid Belt Conveyor...
Page 69: ......
