Festo DRQD-40 ... 50-... - Handbuch (Seite 72)

DRQD−...
Festo DRQD−... 0907e English
72
12 Troubleshooting
Defect Possible cause Remedy
Uneven moveĆ
ment of the
moving mass Flow control valves inserted
incorrectly Checking the restrictor function
(supply or exhaust air restriction)
moving mass
Asymmetric angle setting Symmetric setting preferred
DRQD defective Return to Festo
Mid−position is
not reached
despite ventilaĆ
tion (only for
DRQD−...−Z1) Pressure at mid−position
module too low
Eccentrically arranged mass
exceeds the current torque
Select the pressure at the mid−posiĆ
tion module (max. 10 bar) so that a
secure, trouble−free mid−position
movement is guaranteed.
Incorrect actuation Check the pneumatic circuit diagram
Ĉ Hard metal
impact at the
Residual energy too high Select lower swivel speed
impact at the
end position
Ĉ Drive shaft
d
Use stops with integrated shock abĆ
sorbers
does not
remain in the
Use external shock absorbers
remain in the
end position
(bouncing)
Move only against residual air cushion
on the exhaust side
Select a lighter mass
Semi−rotary drive moves
against a non−pressurised
chamber Pressurise both semi−rotary drives
The shock absorber (for
DRQD−40/50)/cushioning
component
(for DRQD−...−P1J) is
screwed out too far Pay attention to the maximum perĆ
missible unscrewing length
(è Commissioning" chapter
Shock absorber/cushioning
component defective
(for DRQD−...−YSRJ/−P1J) Replace shock absorber/cushioning
component
(è Dismantling and repairs")
Fig. 62