Share Interface Connector; Configuring The Power Supplies For Parallel Operation - Helios ICT Platinum Series Instruction Manual

4.1.

SHARE Interface Connector

The RJ-11 connectors for the RS485 serial interface are located on
the back of the power supply and are labeled SHARE "A" and "B".
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
power supplies is available from ICT, part number "ICT-JMP".
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:
1. Power each unit up independently. In the Control Panel menu,
scroll to the Parallel Status screen and press Enter to move to
the Parallel Settings screen.
2. Scroll to the Parallel Mode setting and press Enter. Scroll and
choose a parallel mode setting, then press Enter. One unit must
be configured as a Primary, and the remaining units must be set
to Secondary. If more than one unit is configured as a Primary,
the units will not operate in parallel correctly.
Since the Secondary units will be controlled by the Primary, set
the unit you would like to use to set the Output Voltage and
Current Limit as the Primary unit. You will be unable to set the
Output Voltage or Current Limit from any of the Secondary units
once they are configured as Secondaries.
3. Scroll to the Device ID setting and press Enter. Scroll and choose
a unique device ID number for each unit, then press Enter. If
more than one unit is assigned the same device ID number, the
units will not operate in parallel correctly.
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Figure 3: Back panel SHARE connections