Problem:
Canbody transport motor doesn’t move correctly to the reference position, or stops, or changes the direction of rotation, or the display of the servo controller U7 shows „IMax“ or „P03 trip“.
Possible Causes & Resolutions:
To check:
- Mechanical condition of canbody transport motor: Turn it by hand and check that everything runs smoothly.
- Resolver mounting: Is firmly connected to the motor shaft?
- Resolver bearings: Remove the resolver from the motor shaft and check if it is turning smoothly.
- Resolver and motor connections: Motor and resolver are connected correctly and clamps/plugs tightened?
- Motor windings: Disconnect the motor from the inverter and check the windings with an ohm meter (U-V,U-W,V-W). All values are equal?
- Output servo controller: Measure the inverter output voltage when it should run (U-V,U-W,V-W). If 0V and display shows „IMax“ maybe servo controller defective.
- Machines with lift table and non-stop: Check whether the white gear wheel on the encoder shaft of the downstacker motor is fixed on the shaft by the M3 grub screw. Make sure that the grub screw is aligned to the flat surface on the shaft.
