Festo Неполноповоротные приводы DRQD-6...12 - Handbuch (Seite 45)

DRQD-6/ ... /12-...
Festo DRQD-6/ ... /12-... 0109a English
45
11 Accessories
Designation Type
Safety start-up valve HEL-...
Adapter plates HAPG-.../HAPS-...
Flow control valve for exhaust air restriction GRLA-.../GRLZ-...
Screw connector (only for DRQD-...-HS) QSR-M5-4/QSRL-M5-4
Compressed air compensation reservoir VZS-...
Open-loop controlled non-return valve HGL-...
Proximity switch SME-10/SMT-10
Centring sleeve ZBH-...
Fig. 48
12 Eliminating faults
Fault Possible cause Remedy
Irregular movements
of the moving load – Restrictors inserted in-
correctly
– Asymmetrical angle set-
ting
– DRQD-... defective
– Check the restriction function
(supply or exhaust restriction)
– Setting should preferably be
symmetrical
– Return to Festo
– Hard knocking in
the end position
– Drive shaft does
not remain in the
end position (it
bounces back)
Residual energy too great – Select lower rotational speed
– Use external shock absorbers
– Move only against the residual
air cushion on the exhaust side
– Select smaller load
bounces back)
Rotary drive moves against Pressurize rotary drive on both Rotary drive moves against
an unpressurized chamber Pressurize rotary drive on both
sides
Fig. 49