68 PRODIGIT
4-8 Parallel operation
It is possible to operate load modules in parallel if the power and/or current capability of a
single 3310F series load module is not sufficient.
The positive and negative outputs of the power supply are connected individually to each
load module as shown in the Fig 4-9 below. The setting is made at each individual load
module. The total load current is the sum of the load currents being taken by each module.
It is permitted to operate ‘F’ series load modules with different voltage, current and power
ratings to sink in parallel. For example the 4 loads modules shown in Fig 4-9 could be a
mixture of 3311F, 3314F, 3332F and 3340F.
While in static mode the load modules can be set to operate in CC, CR or CP. When using
multiple loads to sink power from a single DC Source it is not permissible to operate in
dynamic mode.
Note: 1. the electronic load only may carry on the parallel operation under the fixed electric current
pattern.
2. The electronic load do not use under series connection.
Ι=I1+I2+I3+I4
Fig 4-9 3310F series plug-in module parallel operation
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