PROBLEM: |
POWER ON LAMP won't illuminate. |
SOLUTION: |
1. Check E-STOP. |
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2. Ensure gates are closed and main power is on. The
touch screen message banner will display the current
status.
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3. Check HMI display and see of Power Off message is
displayed. If not, replace indicator light.
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PROBLEM: |
Machine won't go into AUTO. |
SOLUTION: |
1. Machine is in an error condition; check display for
error, reset or home machine as needed.
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2. Control power is not on; see above. |
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PROBLEM: |
Multiple pieces of glass slipping through and being sent
to next station.
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SOLUTION: |
1. Glass loaded too close together on Infeed Conveyor.
Distance from light to light should be an absolute
minimum of 6".
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2. Sensor dirty. Clean with a clean dry cloth. |
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PROBLEM: |
Glass won't transfer from Shuttle Infeed to Shuttle.
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SOLUTION: |
1. Not in cycle or in cycle stop. Press START button.
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2. Glass data missing or incorrect. Check Line Status on
nearby operator interface.
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3. Check machine status display message on Line Status
screen.
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4. SHUTTLE INFEED or OUTFEED OUTFEED CLEAR sensor is
blocked or dirty. Shuttle cannot move to infeed
position. Check; clean.
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PROBLEM: |
Glass won't transfer from Shuttle to Spacer Applicator
Infeed
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SOLUTION: |
1. Not in cycle or in cycle stop. Press START button.
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2. Spacer Applicator Infeed not in Auto Mode. Check the
Spacer Applicator touch screen; select Auto and press
START.
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3. Sensor dirty. Clean with a clean dry cloth. |
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4. Glass data missing or incorrect. Check Line Status on
nearby operator interface.
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5. Base or Cap glass missing. Check; adjust; update
display.
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6. Glass set to feed through front only or back only but
glass present both front and back.
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7. Check machine status display message on Line Status
screen.
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8. SHUTTLE INFEED or OUTFEED OUTFEED CLEAR sensor is
blocked or dirty. Shuttle cannot move to outfeed
position. Check; clean.
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PROBLEM: |
VFD / Blower / Conveyor doesn't run. |
SOLUTION: |
1. Check function by manually jogging conveyor from HMI
after resetting.
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2. Cycle e-stop power. |
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3. Check for missing data, glass. |
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4. Check part present sensors. |
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5. Check fuses |
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6. Check ethernet cable connections and routers. |
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7. On recently replaced hardware, confirm all parameters
are correctly entered and the IP address is correct and
not overlapping existing active addresses. Check data
link parameters (Powerflex 525s: C153-C160)
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PROBLEM: |
Axes seem to jerk from position to position. |
SOLUTION: |
1. Check AXIS SPEED, ACCEL or DECEL PARAMETERS, may be
too high.
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PROBLEM: |
Servo Communication Error |
SOLUTION: |
1. Normal on power-up. Home. |
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2. During regular operation, check logic voltage
connections.
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3. Check ethernet connections, try different patch
cables. Look for IO faults on PLC's LED indicators.
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4. Make sure that all servo drives controlled by PLC are
powered on. Note some servo drives may be in the cabinet
of other machines.
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PROBLEM: |
Frequent Servo Errors. |
SOLUTION: |
1. Normal on main cabinet power-up. Home. |
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2. During regular operation, reset. If the problem
persists, see below.
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PROBLEM: |
Frequent Servo Errors. Position Error: |
SOLUTION: |
1. Position error tolerance set too low; see plc
program.
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2. Axis Torque Limit set too high; check & adjust -
note: if the torque limit is set beneath a certain point
(determined by the friction & inertia of the
mechanical power-train) the motor will not be able to
move.
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3. Axis Accel / Decel / Speed set too high, check &
adjust.
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4. Poor Servo Cable connections; check motor cable
connections at both the motor and drive sides.
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5. Servo cable failure. Check & replace. |
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PROBLEM: |
Frequent Servo Errors. Position Error: |
SOLUTION: |
1. Position error tolerance set too low; see plc
program.
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2. Axis Accel / Decel / Speed set too high, check &
adjust.
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3. Poor Servo Cable connections; check motor cable
connections at both the motor and drive sides.
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4. Servo cable failure. Check & replace (if
replacing, consider using 'high flex' cables).
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5. Mechanical binding; check & clear. |
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PROBLEM: |
Frequent Servo Errors. Feedback Error; Encoder Fault.
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SOLUTION: |
1. Poor Servo Cable connections; check cable connections
at both the motor and drive sides.
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2. Servo feedback cable failure. Check & replace (if
replacing, consider using 'high flex' cables which are
rated by millions of bend cycles.).
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PROBLEM: |
Frequent Servo Errors. Hall Effect Error |
SOLUTION: |
1. Poor Servo Cable connections; check feedback cable
connections at both the motor and drive sides.
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2. Servo feedback cable failure. Check & replace (if
replacing, consider using 'high flex' cables).
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PROBLEM: |
Frequent Servo Errors. IPM Motor Fault / Over Temp /
Over Current Fault
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SOLUTION: |
1. Poor Servo Cable connections; check motor cable
connections at both the motor and drive sides.
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2. Servo cable failure; check & replace (if
replacing, consider using 'high flex' cables).
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3. Drive failure; check and replace. |
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4. Stray wires shorting out terminals on drive; check
and fix as necessary.
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5. Binding or interference during homing; check and
clear any binding / blockages. Note: a servo axis must
NEVER be able to move so that the home sensor is on the
"wrong" side of the home flag.
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PROBLEM: |
Servo Error: Duplicate address found. |
SOLUTION: |
Another device has been added to the network with the
same IP address. Check for recent additions. Isolate and
track down using "ping" and other computer tools. Cycle
power.
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PROBLEM: |
Anything you can't figure out. |
SOLUTION: |
CALL ERDMAN AUTOMATION AT
763-389-9475
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