OnRobot VGC10 User Manual page 97

Operation
Seek and auto level: when checked, the gripper will be moved by the robot in the +Z direction (in
Tool coordinate system) until it reaches a surface (this is the seek part) with both channels. This
feature is only useful if both channels are going to do the grip at the same time. During the motion
the gripper's orientation is automatically adjusted to be parallel to the surface (this is the auto level
part).
NOTE:
In order to help the Auto-level part to function, make sure to use the
same suction caps for A and B channels and set the arms to be
symmetrical.
When any of the VG grippers is used without a HEX-E/H QC but used on an E-series controller the following
extra option becomes available:
Seek: when checked, the same seeking action will happen as above. Since the auto leveling part is
not used the VG grippers need to be parallel to the surface.
NOTE:
Setting a lower vacuum gives a faster grip with less wear on the vacuum
cups. It also reduces the risk of leaving suction marks on delicate
workpieces.
It can take a few seconds when pressing Play or Test before the robot
program starts. This is normal.
When the two channels are set to different vacuum percentages the VG
grippers automatically release air into the channel with lower pressure.
This feature is activated when the pressure is more than 20% vacuum
over the setting. Releasing air generates a characteristic rumbling sound
and change in pumping speed.
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