Innovative Circuit Technology Ltd.
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Up to six power supplies of the same output voltage rating can be
connected in parallel to provide up to six times the total output power
capability of a single unit. An optional bus bar set (ICT-PAR) is
available to simplify connection of two units in parallel. When
multiple power supplies are operating in parallel, they should all be
connected together through the RS485 SHARE interface ports
(located on the back panel). This will allow the units to share output
current more equally, and allow for the external network connection
of the combined units using a single Ethernet port on the Master. One
of the units will operate as a Master, and the remaining units are
Slaves, with the combined settings controlled by the Master.
Each slave unit displays its own output current and voltage on the
System Status screen in its Control Panel menu, while the Master
displays the combined System Current.
If you are running a single, standalone power supply, the Parallel
Mode setting must be set to Standalone.
4.1. SHARE Interface Connector
The RJ-11 connectors for the RS485 serial interface are located on
See figure 3. Parallel units must be connected together in a daisy-
chain manner with a RJ-11 four-wire straight-through cable. A short
(4 inch) RJ-11 connector cable suitable for interconnecting stacked
ICT-
JMP”.
Figure 3: Back panel SHARE connections
4.2. Configuring the Power Supplies for Parallel
Operation
Before connecting the power supplies together, they should all be
configured for parallel operation. To do this: