EATON ELECTRICAL
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Predictive Diagnostics
If an external signal (most preferred is potential transformer of the phase A), is planned for
synchronization the jumper J1 should be removed. This allows using a signal connected to the “Ref” #7
terminal for synchronization. The signal should not exceed 6 VAC and, if exceeds, should be externally
conditioned by, for example, resistive divider. Note that “Ref” has 1 MOhm-impedance to the ground.
a.
b.
c.
Figure 6.3 Default jumper position as shown. Rev 1.
6.2 Phase Reference Shift
Phase Reference shift is a phase angle between IG synchronization signal and the phase A voltage on
the monitored object. It does not matter how this number is obtained. One may use InsulGard, a phase
meter, oscilloscope or another instrument.
6.2.1 Internal Synchronization
Power source 115/230 VAC is used for synchronization, as default. Phase shift between power source
voltage and the phase A voltage should be determined.
In case of a number known from any other source it can be manually entered.
Jumper J1
Jumpers
J4 & J5
Jumper J12
