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Parallel Operation
Introduction
Primary/Secondary Configuration
Primary/Secondary Front Panel Display
Primary/Secondary Programming Considerations
Primary/Secondary Power Rating Considerations
Primary/Secondary Command Details
Troubleshooting
Introduction
SHOCK HAZARD All paralleled units must be connected to ground through a
grounded power cord at all times. Any interruption of the protective (grounding)
conductor or disconnection of the protective earth terminal on any unit will cause a
potential shock hazard that could result in injury or death.
To Prevent Possible Equipment Damage:
Connect no more than twenty units of identical input and output voltage ratings. All
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units must have the same voltage rating but current ratings can be different. All
units must have the same version firmware. Refer to
the firmware version.
Always turn the ac power on and off together. Never leave any units powered on
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while the others are turned off.
Parallel operation lets you connect multiple power supplies together to create a system with higher
total current and power. This applies for current sourcing as well as current sinking operation. In
primary/secondary operation, the paralleled group is controlled through the primary unit, and appears
as a single higher-power supply. The primary unit provides the aggregate of most source and
measurement functions.
Remember to connect the primary/secondary cables and configure the termination switches before
attempting to turn on and discover the secondary units (refer to
Primary/Secondary Configuration
The configuration procedure for primary/secondary operation is as follows:
Configure one unit as the primary
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Configure the other units as secondary units with unique bus addresses
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Keysight PV8900 Series Operating and Service Guide
4 Using the Photovoltaic Array Simulator
Instrument Identification
Multiple Unit Connections
for
for details).
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