Datasheet

II-2016, www.findernet.com
E
Functions
Output relay On (NO closed) when all OK: positive logic.
Type
70.31
70.41
70.42
70.61
70.62
Phase loss and phase rotation If the sequence (L1, L2, L3) is incorrect at power-on, the output
relay will not turn-on.
If a phase is lost, the output relay turns off immediately.
When the phase is again active, the output relay turns on
immediately.
Phase loss monitoring possible even under regeneration up to
80% of the average of the other 2 phases.
Type
70.41
70.42
Neutral loss and asymmetry
Asymmetry
Neutral Loss
If the neutral is lost (and the Neutral control function is set), the
output relay turns off immediately.
When the neutral is again present, the output relay turns on
immediately
If the asymmetry (U
max
- U
min
)/U
N
is above the % set value, the
output relay turns off after the set delay T.
When the asymmetry is again below the % set value (with a fixed
hysteresis of approximately 2%), the output relay turns on after
the Switch-on lock-out time.
(for 70.42 and 70.62 only)
6
70 SERIES
Line monitoring relay
70
SERIES