Device description
16
isoGEN523_D00320_04_M_XXEN/06.2018
Delay on release
t
off
The delay on release
t
off
can be set uniformly for all messages using the parameter
"toff", whereby each alarm message specified in the alarm assignment hast its own
timer for
t
off
. An alarm will continuously be signalled until the threshold value of the re-
spective measured value is not violated (including hysteresis) for the period of
t
off
with-
out interruption. Each time the threshold value is not violated for the period of
t
off
, the
delay on release "toff" restarts once again.
Start-up delay
t
After connection to the supply voltage
U
S
the alarm indication for the preset time
(0…10 s) in the parameter "t" is suppressed.
3.2.11
Factory settings FAC
Activating the factory settings will reset all modified settings, with the exception of the
interface parameters, to the default upon delivery.
3.2.12
External, combined test or reset button T/R
Reset= Press the external button < 1.5 s
Reset with subsequent test= Press the external button > 1.5 s
Stop mode = Press and hold the external button
Only one ISOMETER® may be controlled via an external test/reset button. A galvanic
parallel connection of several test or reset inputs for testing multiple insulation moni-
toring devices is not allowed.
3.2.13
Fault memory
The fault memory can be activated or deactivated. When the fault memory is activated,
all pending alarm messages of the relays remain available until they are deleted by us-
ing the reset button (internal/external) or the supply voltage
U
s
is turned off.
Stop mode can also be triggered via an interface command and in this
case it can only be reset via the interface.
