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7/50D Plus or 7/50D Controller Chapter 3: Installation 40
c. Station bypass switch: For every station, the box labeled Bypass Switch
should match the state of the switch at the station. Flip the switches at the
stations in order to check that:
1. Each station’s box is black when its bypass switch is in the “0”
position (station ready to convey), and
2. Each station’s box is green when its bypass switch is in the “1”
position (station bypassed).
Leave each station with its bypass switch off (in the “0” position).
d. Station receiver level: For each station whose receiver has no low-level
switch, the box labeled Receiver Level should be black; no further
check is needed for these stations. For each station whose receiver has a low-
level switch, you should calibrate the sensor now and, at the same time,
check this input. To calibrate the sensor, remove the receiver’s cover, extract
the low-level switch, and place the switch in a container of the material that
you will be using at this station. Adjust the sensor according to the procedure
given in the manufacturer’s documentation for the switch. While you are
doing this, check that:
1. The box on this screen is green when the sensor indicates that no
material is present, and
2. The box is black when the sensor indicates that material is
present.
Note: You will not see any alarms for “receiver low level” during this
procedure. In order to prevent nuisance alarms when the system starts,
the controller’s software is designed to issue these alarms only after
material has been detected in the receiver at least once.
When you have finished calibration and checking, reinstall the switch in the
receiver.
e. Pump inputs (verify, high vacuum, fault #1, fault #2): All boxes for pump
inputs should be black. Because these inputs can turn on only when the pump
is running, it is not possible to check their operation further at this point.
If any input does not operate as expected, check the wiring on the ArmorBlock. If this does
not solve the problem, phone the Service Department for assistance.