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Function
ISOnet function (COM SETUP)
Select „ISOnet=ON“ in the menu COM SETUP to activate this function. This
function is a type of scanning function. If the ISO net function of the BMS
Master is activated, it controls the ISOnet Slave devices via BMS (Bender
Measuring Interface). Once the measuring cycle is completed by an ISOMETER,
the ISOnet Master passes the permission for insulation measurement to the next
Slave. During the insulation measurement by one Isometer all other ISOMETERs
remain in the STANDBY mode. That prevents cross interferences between the
ISOMETERs in interconnected systems. In comparison to the function „coupling
switches and function input F1/F2“ the measurement is not carried out conti-
nuously so that the response time is prolonged. In average the response time is
prolonged for about 8 seconds (Ce = 1µF) for each network node. The advantage
is that no auxiliary contacts of a coupling device are necessary. In addition, this
would provide a solution for capacitive or diode-coupled IT systems.
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