Fronius Selectiva 2100 Service Manual page 155

The main switch must be switched on.
With nominal (DC) battery charging system voltages  500 V  the test voltage of the
measuring equipment is 500 V for all measurements *).
The insulation resistance must not fall below the following values *):
Measurement
Primary -> Earth
Secondary -> Earth
Primary -> Secondary
Communication -> Secondary
Communication -> Primary
Communication -> optional inputs
Legend:
Primary = AC (L1, L2, L3 and N) | Secondary = DC (DC+ and DC-)
Earth = PE | Communication = USB
*) These requirements comply with DIN VDE 0701-0702 and ÖVE/ÖNORM E8701-1. Also
refer to the applicable requirements and standards in your country.
The insulation measurement must be taken between the following points:
DC+ and DC- should be short-circuited for this test on the battery charging system, other-
wise both DC inputs have to be measured separately.
N and L1, L2, L3 should be short-circuited for this test on the battery charging system, oth-
erwise both AC inputs have to be measured separately.
PE to Primary
Primary to Secondary
Communication to Primary
Use an adapter to short-circuit DC+ / DC- / AC / Communication and optional inputs during
this measurement
Only use the original charger leads and mains cable for taking the measurements.
1 Measuring device
2 Battery charging system
9 Measuring line
Measured value
 1 M
 1 M
 2 M
 2 M
 2 M
 2 M
PE to Secondary
Communication to Secondary
Communication to optional inputs
AC
DC +/- DC +/- DC +/-
155