|
PROBLEM |
CAUSE |
SOLUTION |
| VARIABLE
FREQUENCY DRIVE IS DISPLAYING A FAULT OR IS DEFECTIVE |
Since
there is a number of variables that may cause a fault, you must
first record the fault number displayed on the VFD (i.e. F001, F002,
F003, etc) then refer to your owner's manual where you will find
a Fault Code list and description. |
To
clear the fault displayed you can either shut your machine's power
off for at least 20 seconds and then turn it back on, or you can
press the "P" key twice on the VFD's keypad. Once you
have located the fault in your owner's manual, follow the recommendations
listed to clear the fault and correct the problem. |
| The
VFD is defective. |
Make
sure you attempt to correct the problem by following the recommendations
outlined in the owner's manual. If you clear the fault but it reappears
immediately after power is applied and the motor is not being requested
to run, you must replace your drive. |
| The
power wires L1 and/or L2/N are unplugged or damaged. |
Turn
main power off and reconnect or replace the wires. |
| The
wires on the operation terminals (5, 6, 7) are unplugged or damaged. |
Turn
main power off and reconnect or replace the wires. |
| The
wires for external speed control on analog reference terminals (1,
2, 3, 4) are unplugged or broken. |
Turn
main power off and reconnect or replace the wires. |
| The
potentiometer for the external speed control is defective. |
Turn
main power off and replace the potentiometer. |
| None
of the above solves your problem. |
Contact
your distributor. |
| BLOWN
FUSE |
Overload
- The current draw has exceeded the rated value of the fuse. |
Make sure that nothing else has been added to the circuit / line
feeding the wrapper. If devices or components have been added to
the machine, remove them, replace the fuse, and try another cycle.
Do not modify the machine or retro-fit any components onto it without
consulting with your distributor beforehand. |
| Short
Circuit |
Check
for a short on the suspected component, wires to and from that component,
and terminal strips. If none are found replace the fuse with one
of the same rating. If the fuse blows again, contact your distributor. |
| Defective
component |
Test
the component and wiring. Ensure that the proper supply voltage
is present. If the component is deemed defective (by yourself and
your distributor), replace the part. |
| POWER
LIGHT IS NOT ON |
Power
cord is not plugged in. |
Plug
in the power cord. |
| Main
breaker is OFF. |
Turn
on the main breaker. |
| Light
bulb is burned out. |
Change
the light bulb. |
| Main
switch is in the "OFF" position |
Turn
the switch to the "ON" position. |
| WRAPPING
CYCLE DOES NOT START |
Emergency Stop is ON. |
Release
the emergency stop button and retry. |
| The
"Start" button was not pressed. |
Press
"Start", ensure that input 0.0 on the PLC comes on. |
| Carriage
up speed and the turntable speed are set at zero on the control
panel or too low for the carriage and turntable to move. |
Increase
the speed with the control potentiometer on the control panel. |
| PLC
is in a low voltage sleep mode probably due to power drop. |
Turn
machine off for at least one minute. Then turn the power back on.
If the problem is recurrent, have the power line checked by an electrician. |
| System
fault (SF) light is on (PLC). |
Please
contact your authorized distributor. |
| CYCLE
STARTS NORMALLY BUT AS SOON AS THE TOP WRAPS ARE COMPLETE, THE CARRIAGE
WILL STOP NEAR THE TOP OF THE LOAD |
The
"Top Cover" function is "On". |
Turn
the "Top Cover" selector switch to the "Off"
position. |
| MAIN
POWER IS ON BUT ALL COMPONENTS INSIDE THE PANEL ARE OFF |
Transformer
problem |
Refer
to your electrical schematic. Make sure that you are getting 230V
off the secondary side. |
| Fuse
F1 is blown |
Remove
and verify fuse #1. If blown replace (see Blown Fuse) |
| MCR-1
is defective |
Refer
to your electrical schematic. Check both line and load side voltage
of your MCR. When the main power is "On" and the E-stop
is not activated, the contactor should be engaged (pulled-in). Contact
your distributor for assistance. |
| DC
Power supply is defective |
Verify
that you have 230Vac across L1 and L2 and 24Vdc across "+"
and "-"of the power supply. If not, replace the unit.
A defective power supply results in loss of power to the PLC and
all input devices (photoeyes, proximity sensors, switches, etc) |
| THE
NUMBER OF TOP / BOTTOM WRAPS PERFORMED DOESN'T MATCH WHAT IS ENTERED
ON THE THUMBWHEEL |
Thumbwheel
switch may be defective. |
Set the Top or Bottom wrap thumbwheel switch to "0".While
pressing the "+" button, monitor inputs I1.2 to I1.5.
They should count the number entered in binary. (Contact your distributor
if you require help) |
| Rotation
proximity sensor (counter) may be misaligned. |
See
Turntable / Rotary
Arm troubleshooting guide. |
