36
6.
Press
several times to exit the menu.
Parallel/Series Connection
More than one unit of the
same model
can be connected in a parallel or series configuration.
Table 3.2 below shows the total number of units that can be connected in each configuration.
The power supplies can be set up in master/slave mode so that the master unit can control all
other power supplies in the parallel or series connection.
Note: Master/slave configurations and RS-485 connections must be properly set up
prior to controlling the power supplies in parallel/series connection. However,
RS-485 does not have to be set as the Communication interface for master/slave
operation to function.
Table 3.2 – Series/Parallel Configuration Table
Model
Series
Parallel
9115/B and 9115/B-AT
3 units (240 V Max)
3 units (180 A Max)
9116/B
2 units (300 V Max)
4 units (120 A Max)
9117
3 units (240 V Max)
4 units (480 A Max)
Connecting more units in series/parallel than specified in the table above can cause
damage to the power supplies and void the manufacturer’s warranty.
Connection and Setup
Connecting multiple power supplies in parallel or in series can increase the overall current
output or voltage output respectively. For this configuration to function properly, there are
several items that must be set up first. Follow the instructions in this section carefully for setup.
Connection
Determine the total number of power supplies that you want to connect in parallel or series.
Disable the output of the power supplies and power OFF the power supplies.
