Inficon SQC-310

3 - 38
PN 074-550-P1C
SQC-310 Operating Manual
BCD: Select when position control is through an external rotation controller
which accepts Binary Coded Decimal (BCD) inputs for position selection.
BCD inputs are common because they require only a few signal lines to
select several positions. SQC-310 automatically creates the number of
relay outputs required to interface with the external controller.
Individual (discrete): Select when position control requires a unique
signal line for each position. SQC-310 automatically creates the number of
relay outputs required to interface with the external controller.
Feedback Type: Defines the type of feedback for a multi-crystal sensor head.
This is how the SQC-310 identifies the current crystal position.
None: No crystal feedback is provided. SQC-310 tracks crystal position from
the current position setting (above). This setting is used for the CrystalSix and
Crystal 12 rotary sensors.
Individual (discrete): Uses one input for each pocket position in the source.
All inputs are normally false (open circuit) unless the respective pocket is in
position when that input is true (closed to ground). This setting is used for the
RSH-600 rotary sensor.
BCD: Uses binary coding to indicate the pocket position. For example, an
eight-pocket source would use three inputs. With pocket one in position, all
inputs would be false. With pocket four in position, inputs one and two would be
true and input three would be false.
Single Home: This feedback indicates there is a single feedback signal that
indicates when pocket one is in position.
In Position: The input is normally false (open circuit) and goes true (closed to
ground) when any pocket is in position.
Indexer Delay: This parameter has two different functions. If the Feedback Type
is selected as None, SQC-310 waits the designated time on the assumption that
the pocket will get into position by the end of the delay. If there is position feedback,
SQC-310 will wait this time for the pocket to reach the target position. If it does not
receive the feedback signal, a Pocket Wait Timeout error is issued.
Table 3-13 INFICON rotary sensor settings
Sensor Type Number of
Positions
Control Type Drive Type Feedback Type
CrystalSix 6 Direct Double Step None
Crystal 12 12 Direct Single Step None
RSH-600 6 Direct Single Step Individual