Chapter 6
– Dimensions, Panel Layouts, Wiring
48
FCM II Installation Guide: 20160419 - Part # 2307
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Figure 6.10 FCM II Field Terminal Block Labels
6.3.3
V
OLTAGE
D
ISTRIBUTION
The common practice of installing a MultiLoad panel usually involves bringing all field devices directly into the
enclosure. But note that DC and AC output modules only switch the voltage and do not distribute Neutral or dc
common voltages. For this reason, Toptech recommends the installation of bussed DIN mounted terminal blocks
to distribute Neutrals and dc commons.
Two ac line voltages are also distributed through the panels. One is normal 120V line voltage switched to additive
injectors, motor operated valves, VRU/VCOs, and pump run signals. The second line voltage to be distributed is
the Ground/Overfill output required by digital control valves.
Note: Do not use FCM II ac outputs to directly run pumps. Use an interposing relay. The
rated currents of the ac output modules should be sufficient for most types of solenoid
valves but note the ratings as shown in Figure 1.2 and section 3.2.