NBC™ Flat Belt - IOM
P/N: 1118140
Rev: 07/29/2020
Page
97
of
129
In accumulation, any two consecutive sensors detecting product will cause the upstream zone of the
two consecutive zones to deactivate until the downstream zone is no longer detecting product. The
logic signal is passed upstream on Pin 2.
Figure 22: Basic Accumulation Logic
For single release, a given zone will release once the sensor in the downstream zone is clear of
product. This may be done by removing product or applying an electrical release signal (+VDC) to PIN
2 and this also applies to the discharge zone.
When using slug release, all zones to which the slug line is connected will be activated
simultaneously. This is initiated by applying supply voltage to PIN 4.
Progressive Accumulation Module
In accumulation, a zone will not deactivate until the furthest downstream sensor is detecting product
and deactivates. The next upstream zone will then become the furthest downstream zone and
deactivate when the sensor is blocked. The logic signal is passed upstream on PIN 2.
Figure 23: Progressive Accumulation Logic
Progressive mode only allows slug release. All zones to which the slug line is connected will be
activated simultaneously. This is initiated by applying supply voltage to PIN 4. The same effect may
be achieved by applying an electric release signal (+VDC) to PIN 2.