User Manual Chapter 2
GFK-2749A Jan 2020
Installation 27
WYE Synchro/Power Control Connection 30
Delta Synchro/Power Monitor Connection (Two Wattmeter Method) 31
Connections for 120/240 VAC system with CTs
The connections shown below detail the installation for a typical North American 120/240-
volt AC three-wire single phase connection. The neutral is connected to a ground point,
usually at the main power distribution panel.
Mandatory equipment includes CT shorting blocks and protection fuses for the voltages.
These will allow replacement of the PSM Terminal Assembly with the system still energized.
WARNING
The following procedure should be performed only by qualified field personnel.
To replace the Terminal Assembly, the Va, COM and Vb fuses are first removed and the CTs
shorted. Then the connections on the Terminal Assembly can be removed safely and the
module replaced.
The PSM module can be replaced simply by powering off the host controller and replacing
the module, or by hot-swapping the module when the field conditions are safe to do so.
The IC694CBL200 cables can be disconnected from either the PSM module or the terminal
assembly when the host controller is powered off. This can be done without disturbing the
wiring field wiring on the Terminal Assembly.
Figure 12
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