|
PROBLEM |
CAUSE |
SOLUTION |
| ARM
DOES NOT STOP AT HOME POSITION |
The count proximity 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 for every turn). |
Adjust
the sensor closer to the sensor block. |
|
Ramp down time (deceleration) is too high; causing an overshoot
of the home position. |
Check parameter P002 on rotary arm'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). |
| While
loading a new roll of film onto the carriage or when attaching the
film on a load to be wrapped, the rotary arm was moved away from
the home position. At the end of the cycle, it will stop 180-degrees
opposite the normal home position. |
Ensure that the rotary arm is not moved during the process of replacing
a roll of film or when pulling the film from the carriage to attach
it to a load. |
| CARRIAGE
GOES UP/DOWN BUT THE ARM DOES NOT TURN |
The speed potentiometer for the arm is set to "zero" on
the 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. |
| VFD
is defective. |
See Control Panel troubleshooting guide. |
| ROTARY
ARM STOPS DURING CYCLE(not at home position) |
The
rotary arm safety photoeye has been blocked either momentarily or
sustained. |
Remove
obstruction from light beam path. If nothing is blocking the photoeye,
double-check the light beam alignment with the reflector located
on the nylon hoop. |
| AFTER
PRESSING CYCLE START, ARM DOES NOT TURN |
The
rotary arm safety photoeye is obstructed or misaligned with the
reflector on the nylon hoop. |
Remove
obstruction or realign light beam so that it's aimed at the reflector. |
| E-Stop
is pressed. |
Pull
E-stop button and retry cycle. |
| VFD
is faulted. |
Open
panel door, record fault number and refer to Control Panel troubleshooting
guide. To reset fault and try again, turn power off for at least
20 seconds. |
