iso1685DP_D00272_03_M_XXEN/08.2017
29
Settings
9. Settings
The settings of the ISOMETER® are explained in the order of the device menu.
9.1 1.0 Alarm settings
The limit values for the insulation resistances of alarm 1 and alarm 2 can be specified in
the alarm settings menu and adjusted to the profile of the ISOMETER®. If you have acti-
vated the password query in the device menu (refer to “Password” auf Seite 35), you must
enter the device password in order to change the settings.
You can adjust the following functions:
9.1 (1.1) Insulation alarm
In the Insulation alarm menu, the ISOMETER® limit values for alarm 1 and alarm 2 can be
set. Activation or deactivation of the two alarm levels R
an1
(alarm 1) and R
an2
(alarm 2) are
illustrated in the following graphic:
An alarm will become inactive as soon as the hysteresis of the set operating value is ex-
ceeded.
9.1 (1.1.1) Alarm 1
An insulation resistance of 0.2 k…1 M can be set for alarm 1.
Condition: alarm 1 ≥ alarm 2.
9.1 (1.1.2) Alarm 2
An insulation resistance of 0.2 k…2 M can be set for alarm 2.
t
R
R
an1
R
an2
Alarm 1
aktive
Alarm 2
aktive
hysteresis
Alarm 1
inaktive
hysteresis
Alarm 2
inaktive
9.1 (1.2) Profile
Adapt the area of application of the ISOMETER® to your system profile. For a description
of the profiles, refer to “Device profiles” auf Seite 42.
The following can be selected:
9.1 (1.3) Fault memory
Automatic reset of inactive faults at the outputs
(relays 11-12-13, 21-22-24, 31-32-34):
•Power circuits
Suitable for most IT systems.
•High capacitance
Suitable for system with high leakage capacitances.
Limit of the measuring range: 200 k
•Inverter > 10 Hz
Suitable for systems with dynamic frequency control by
inverters in the range 10 to 460 Hz.
•Inverter < 10 Hz
Suitable for systems with extremely low frequency control
in the range 1…460 Hz.
•Fast 2000 µF
Suitable for systems with very high leakage capacitances,
e.g. in large-scale photovoltaic systems.
Limit of the measuring range: 50 k
•on
If a fault becomes inactive, the programmed outputs remain
in fault condition until they are reset manually.
•off
If a fault becomes inactive, the programmed outputs auto-
matically change the state.
To Next Page
Loading...
Need help?
General
