Festo DNCE, Operating Instructions Manual

Page: 28 / 98

DNCE
28 Festo – DNCE – 1109e English
11 Troubleshooting
Malfunction Possible cause Remedy
Backlash too
great
( 8 Mainten-
ance and care)
Wear Send DNCE to Festo for repair
Squeaking
noises or
vibrations
Distortions Mount DNCE free of stress
(evenness of bearing surface: ≤ 0.2 mm)
Lubricate piston rod
( 8 Maintenance and care)
Modify speed of travel
Incorrect regulator settings Modify the regulator parameters
(only with servo motors)
Running noises of the spindle support
(with strokes ≥ 300 mm and high posi-
tioning speeds)
No impairment of function
Piston rod
does not move
Jamming in the mechanical end position
(e. g. after reference travel with excess-
ive speed or prohibited travel to the end
position during operation)
– To release a jam manually:
1. Switch off the power supply,
2. Remove motor and coupling
housing,
3. Turn drive shaft to release it
– Reduce speed for reference travel
– Provide software end positions, at
least 0.25 mm away from the
mechanical end positions (stops)
Loads too high – Reduce load mass
– Reduce travel speed
– Send DNCE to Festo for repair
Tension of toothed belt in parallel kit
too high
Reduce tension of toothed belt
( Parallel kit assembly instructions)
Ambient temperature too low
(increased breakaway torque in initial
run due to increasing viscosity of the
lubricants in the spindle system)
– Reduce load mass
– Reduce travel speed
– If necessary, allow higher current
with servo motors ( Operating
instructions for the motor)
– Adjust ambient temperature
Tab. 6