Insulation Settings - Fronius SnapINverter Serviceanleitung

Earth current watchdog
for activating and deactivating the grounding monitoring
Selection options
Off
Warning
Error
Warn Err
Switch off delay
for setting the delay time (in h) until the inverter will switch off following a grounding fault
(unless the fault is rectified in the meantime).
Unit
Setting range
IMPORTANT! If the solar module manufacturer has specified that grounding of the solar
modules is required, the relevant solar module ground setting must be applied to the in-
verter. Instructions from the solar module manufacturer on polarity and the required solar
module grounding method, as well as national regulations, must be observed.
The solar module can be grounded to the negative pole in the inverter itself. In this case
use of a ground fuse (1 A) is mandatory.
IMPORTANT! The fuse in the inverter is not used for grounding the solar modules to the
positive pole; this has to take place outside the inverter.
Insulation set- Activation and setting of the insulation monitoring
tings
Selection options
Insulation warning
for activating and deactivating the insulation monitoring, with display of a warning without
interruption of feed-in if there is an insulation fault
Selection options
Threshold warning
for setting an insulation threshold at which the inverter produces a warning (without inter-
ruption of feed-in)
Setting range
Unit
Insulation fault
for activating and deactivating the insulation monitoring, with error message and immedi-
ate shutdown of the inverter if there is an insulation fault
Selection options
Threshold error
for setting an insulation threshold at which the inverter produces an error message and
interrupts grid power feed operation
Off / Warning / Error / Warn Err
Earth current watchdog deactivated
If there is a grounding fault, a warning that there is no longer a
grounding connection appears on the display at regular inter-
vals (no interruption of feed-in).
The inverter produces an error message if there is a grounding
fault with immediate shutdown of the inverter.
If there is a grounding fault, a warning that there is no longer a
grounding connection first appears on the display at regular in-
tervals (no interruption of feed-in).
The inverter will then be switched off after a specified interval
(switch off delay).
h
0 - 9999
Insulation warning / Threshold warning / Insulation fault /
Threshold error
ON / OFF
b,c,d,e,h
0.1 - 10
0.5 - 10 k
0.6 - 10 a,g,i,j
1.0 - 10 f,l
MOhm
ON / OFF
61