|
PROBLEM |
CAUSE |
SOLUTION |
| TABLE
DOES NOT STOP AT HOME POSITION |
The
count sensor has been displaced or is defective. |
Realign
the proximity sensor. If the problem reoccurs replace the sensor. |
| The
gap between the proximity sensor and the counter block is too large
(see if input no. 1.1 on the PLC flashes 16 times for a WLP-WHP
200 and 2 times for a WHP-300, for every turn). |
Adjust
the proximity sensor closer to the sensor block. |
| Ramp
down time (deceleration) is too high; causing an overshoot of the
home position. |
Check
parameter P002 on turntable's VFD. It must correspond to the setting
that was entered at the factory. (Contact us to obtain an updated
VFD parameter listing for your machine) |
| CARRIAGE
GOES UP/DOWN BUT THE TABLE DOES NOT TURN |
The
speed potentiometer for the table is set to "zero" on
control panel. |
Increase
speed with the control potentiometer located on the control panel. |
| Drive
sprocket key is missing or broken. |
Replace
drive sprocket key. |
|
The motor-to-gear reducer key sheared. |
Change
the key of the motor-to-gear reducer. |
|
The turntable drive chain fell off or is broken. |
Turn
the power off to the machine and fix the chain. |
| A
load of excessive weight has been placed on the table.(for a standard
LP or HP the capacity is 4000lbs; some models have an optional capacity
of 6000lbs.) |
Remove
load from turntable. Jog the turntable in manually. If it runs,
wrap loads only within your machine's capacity. |
| VFD
has faulted or is defective. |
See Control Panel troubleshooting
guide. |
| EXCESSIVE
NOISE EMINATING FROM TURNTABLE |
For
WLP models, one or more of the cam follower supports may have seized. |
Remove turntable and inspect all cam followers. Replace defective
cam follower(s). |
|
For WHP models, one or more caster wheels or bearings may have seized. |
Remove turntable and inspect the caster wheel and bearings. Replace
defective component(s). |
|
The center bearing may be defective. |
Remove
the turntable and inspect the center bearing. Replace defective
component. |
| TURNTABLE
CONTINUES TO TURN AT MINIMUM SPEED AFTER END OF CYCLE |
The
rotation drive is defective. |
See
Control Panel trouble-shooting guide. |
| The
counter is not counting (see if input No. 4 on the PLC flashes 16
times as turntable makes each turn). |
Decrease
the gap between the cam and proximity sensor. |
