Gtec Saturn Manual Del Usuario página 78

DIFFERENTIAL
In the absence of an input separating transformer, the neutral from the mains power supply is connected to the neutral of the
CPS output. This way the neutral regime of the equipment is not modified.
THE DISTRIBUTION SYSTEM THAT POWERS THE CPS IS NOT MODIFIED BY THE CPS
WARNING: make sure that the equipment is connected correctly to the input neutral, or else
damages to the CPS may be caused.
The neutral regime is modified only in presence of an isolation transformer or when the CPS operates with a neutral
isolated upstream.
DUAL INPUT versions: the neutral for the input line and bypass line are shared inside the device.
A single differential switch must be fitted upstream of the point at which the line divides to supply the trip switch-
protected rectifier and bypass inputs for the CPS. See following diagram:
PARALLEL versions: In order to prevent false activations where several machines are connected in parallel, a
single differential switch should be fitted upstream of the entire system. See following diagram:
When operating from mains power, a differential switch located at the input can intervene as the output circuit is not isolated
from the input circuit. Anyhow, other differential switches can be inserted at the output, possibly coordinated with the switches at
the input.
The differential switch located upstream must have the following features:
▪
Differential current adjusted to the sum of the CPS load. It is strongly recommended to keep an adequate margin in
order to avoid delayed interventions (100mA min. - 300mA recommended)
▪
type B
▪
delay greater than or equal to 0,1s
THE INPUT NEUTRAL IS CONNECTED TO THE OUTPUT NEUTRAL
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