Master - Slave Paralleling Interconnections (M5283) - Pacific Power Source AMX Series Operation Manual

3.4.5 MASTER - SLAVE PARALLELING INTERCONNECTIONS (M5283)

The paralleling option, M5283, for models 140, 160, 345, and 360AMX provides the ability to create a
multi-unit AC Power Source system that parallels up to five power sources for increased power.
Paralleled units must all be the same model, and each system must contain at least one designated
master unit, however, any combination of master/slave selectable or dedicated slave units may
connected to the designated master.
Basic instructions to configure a two chassis system follow. For systems equipped with this option,
Section 9 of the manual will include additional operation and connection detail.
LETHAL VOLTAGES ARE PRESENT AT THE OUTPUT TERMINALS OF THIS MACHINE !
REFER OUTPUT CONNECTION TO A QUALIFIED ELECTRICIAN.
DE-ENERGIZE ALL POWER SOURCES BEFORE INSTALLING OR
CONNECTION OF A TWO CHASSIS SYSTEM:
Refer to Figure 3.4.5.1 for the connections required to parallel the two power sources. All
paralleled units must have the paralleling option installed.
On the rear of each power source:
1. On the designated Master Power Source, set the Master-Slave switch (S21) to the
Master position (a designated Master must contain a UPC-32 or UPC-12 controller).
2. On the designated Slave Power Source, set the Master-Slave switch (S21) to Slave
(designated Slave may contain, but does not require a UPC-32 or UPC-12 controller).
3. Connect the supplied Paralleling Interconnect cable to the Master-Slave connectors
(J21) on both power sources.
4. Connect the output terminals of both power sources to each other. i.e. connect the
ØA output terminal of the Master to the ØA terminal of the Slave. Repeat for all
available phases and Neutral.
NOTE: All output wires must be of the same guage and length.
5. Connect the Chassis "CHS" terminals of both power sources together with the
appropriate ring lug and wire (not supplied).
6. If present, connect each Magnetics Module to its Power Source at (P20) as shown in
Figure 3.4.5.1.
NOTE: The chassis, "CHS" and neutral, "N" terminals must always be
connected to both power sources.
Output power connections from the power sources to the load are made at the "OUTPUT POWER"
terminal block at the rear panel of the Master power source only (refer paragraphs 3.4.1 through 3.4.4
for detailed instructions).
designated Master power source as well (refer to paragraph 3.7 for detailed instructions).
remote interface (GPIB or RS-232) connector, J4, and the AUX I/O connector, J5, are active and
should only be connected to the designated master.
WARNING
CHANGING ANY REAR PANEL CONNECTORS.
External sense connection is made in the standard fashion on the
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SECTION 3 INSTALLATION
The