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VC-8000 MPS
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17.3 Using Pre-Programmed Logic Blocks
Pre-programmed logic blocks make relay configuration robust and simple. The ‘For Any (1 or 2 or
3…)’ logic block is shown in the table below.
Control Selection Description
Selected group (Asset Level 1 or 2)
Select Alert or Danger alarm
3. On
Select to restrict the group to a specific
channel type (i.e. Radial Vibration).
Figure 17-4) Logic block example
17.3.1 Define Machine Groups and Channel Types
Pre-programmed logic blocks use your Asset Level 1 and Asset Level 2 groups (Channels tab,
Summary view). These groups are used to help organize the data on the rack display, and they are
also used to define relay logic groups. The groups shown in Figure 17-5 include: Motor, Pump, Brg 1,
Brg 2, Brg 3, and Speed.
Figure 17-5) First, define your asset groups (Motor group highlighted)
Channel types are also used in pre-programmed logic blocks. Typically, they are used to exclude
unwanted channels from the group. For example, the Phase Trigger (Figure 17 4) is part of the Motor
group, but it will be excluded when “On Radial Vibration” is selected.
Be careful of spelling errors when defining your groups. For example “Motor” vs. “Motor“ (with an
extra space) will create two distinct groups. Further, if “Motor” is used in both Asset 1 and Asset 2, the
groups are combined into a single group.