Eliminating Faults; Technical Specifications - Festo HGPP A Série Notice D'utilisation

HGPP-...-A
9

Eliminating faults

Fault
Gripper cannot
hold mass firmly
Sensor does not
show gripping
status
Gripper does not
open/close
Fig. 26
10

Technical specifications

Type
Part no.
Design
Medium
Mounting position
Permitted operating pressure
Festo HGPP-...-A 0110a English
Possible cause
– Mass too large
– Input pressure too low
– Centre of pressure of
gripper fingers too far
outside
– Gripping only by force of
reset spring in wrong
direction of gripping
– Sensor incorrectly ad-
justed
– Cable fracture
– Compressed air not ap-
plied
– Gripper defective
HGPP-
10-A-... 12-A-...
525658- 187867-
525660 187869
Double-piston precision gripper
Filtered, lubricated or non-lubricated compressed air
(filter fineness min. 40 ìm)
As desired
2... max. 8 bar (control range at 23 °C; without spring pressure)
Remedy
– Select larger gripper
– Increase input pressure to maxi-
mum permitted value
– Move centre of pressure further
inwards
– Use direction of gripping pre-
scribed
– Check position and calibration of
sensor
– Replace sensor cable
– Check compressed air connec-
tions
– Return gripper to Festo
16-A-... 20-A-... 25-A-...
187870- 187873- 525661-
187872 187875 525663
32-A-...
525664-
525666
29