Operation and setting
60
IRDH575_D00089_05_M_XXEN/01.2020
1cycle
EDS47… :
As soon as the insulation resistance has fallen below the ISOMETER®
response values ALARM 1 and 2, the EDS system is automatically acti-
vated once. It remains active until every EDS47… has measured all
channels once and as long as the test current during the measure-
ments is above 1.5 mA (EDS470) or 0.15 mA (EDS473).
EDS46… / 49… :
As soon as the insulation resistance has fallen below the ISOMETER®
response values ALARM 1 and 2, the EDS system is automatically acti-
vated once. It remains active for approximately 5 minutes when the
test current during the measurement is above 1.5 mA (EDS460/
EDS490) or 0.15 mA (EDS461/EDS491).
auto
As soon as the insulation resistance has fallen below the ISOMETER®
response values ALARM 1 and 2, the EDS system is automatically acti-
vated for approximately 5 minutes and remains activated as long as the
test current is above 5 mA (0.5 mA). The EDS insulation fault location
process is cyclically interrupted for approximately 5 minutes (factory
setting), i.e. for the time the ISOMETER® is carrying out insulation fault
measurements.
6.6.3 System DC / 1 AC / 3 AC
The type of the system to be monitored are to be selected from this sub menu:
DC = DC system
1 AC = single phase AC system
3 AC = three-phase AC system
Factory setting is 3AC!
6.6.4 maxPuls 1 / 2.5 / 10 / 25 / 50 mA:
This setting determines the maximum test current.
1 and 2.5 mA for EDS473 / 461 / 491 systems, preferably 2.5 mA.
1mA is recommended when sensitive electrical equipment is supplied
by the system, such as PLC controllers
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