Electronic Control Box
14
Setup Description Range Default
P2.01
Minimum voltage threshold - release 70…98 % Ue 85 % Ue
P2.02
Minimum voltage threshold - retrieval 75…100 % Ue 90 % Ue
P2.03
Minimum voltage threshold delay 0.1 …. 900 s 1.0 s
P2.04
Maximum voltage threshold - release 102…120 % Ue / OFF 115 % Ue
P2.05
Maximum voltage threshold - retrieval 100…115 % Ue 110 % Ue
P2.06
Maximum voltage threshold delay 0.1 …. 900 s 1.0 s
P2.07
Threshold of phase failure 60 … 85% Ue / OFF 70 % Ue
P2.08
Phase failure threshold delay 0.1 … 30.0 s 0.1 s
P2.09
Voltage unbalance threshold 1 … 20 % / OFF 10 %
P2.10
Voltage unbalance threshold delay 0.1 … 900 s 5.0 s
P2.11
Threshold of minimum frequency OFF / 80… 100 % Fe 95 % Fe
P2.12
Minimum frequency threshold delay 0.1 … 900 s 5.0 s
P2.13
Threshold of maximum frequency 101 … 120% Fe / OFF 105 % Fe
P2.14
Maximum frequency threshold delay 0.1 … 900 s 3.0 s
P2.15
Voltage return delay on main line within
the limits (when circuit breaker secondary
line open)
1 … 3600 s 10 s
P2.16
Voltage return delay on main line within the
limits (when load on secondary line)
1 … 3600 s 60 s
P2.01 - P2.02 - P2.03 - The first two parameters determine the minimum voltage threshold and its
hysteresis when retrieved. P2.02 cannot be set to a value which is lower than P2.01. P2.03 determines
the delay time for the activation of this protection. See chapter on Voltage controls
P2.04 - P2.05 - P2.06 - The first two parameters determine the maximum voltage threshold and its
hysteresis when retrieved. P2.05 cannot be set to a value which is higher than P2.04. Setting P2.04 to
OFF will disable the maximum voltage control. P2.06 determines the maximum voltage tripping delay.
See chapter on Voltage controls
P2.07 - P2.08 - Voltage threshold under which there is an activation due to phase failure, usually faster
than the reduction. The delay time for the phase failure is specified by P2.08
P2.09 - P2.10 - P2.09 determines the maximum unbalance threshold between the phases, referred to
the nominal voltage; P2.10 determines the relative tripping delay.
This control can be disabled by setting P2.09 to OFF
P2.11 - P2.12 - Threshold (disabled) and minimum frequency tripping delay
P2.13 - P2.14 - Threshold (disabled) and maximum frequency tripping delay
P2.15 - Return delay time on main line within the limits, used when the source of the secondary line
is not available. Normally shorter than P2.16: since the load is not powered, it is necessary to supply
voltage
P2.16 - Return delay time on main line within the limits, used when the load can be connected to the
secondary line. Normally longer than P2.15: since the load is “covered”, it is possible to wait longer
before considering the voltage stably retrieved
7.5 P2 menu - Main line voltage control
The highlighted param-
eters are included only in
version M7000CB/EVO
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