Automatic transfer switch
4 226 81
Installa
tion and user manual
25
• P06.01 - P06.02 - P06.03 – The first two parameters define the minimum voltage threshold and the related hysteresis
upon restore. P06.02 cannot be set to a lower value than P6.01. P6.03 defines the intervention delay of this protection.
• P06.04 - P06.05 - P06.06 – The first two parameters define the maximum voltage threshold and the related hysteresis
upon restore. P06.05 cannot be set to a value exceeding P06.04. Setting P06.04 to OFF will disable the maximum volta-
ge control. P06.06 defines the maximum voltage intervention delay.
• P06.07 – Delay for S.Q1 (Line 1) restores to the limit range, used when the line 2 (S.Q2) source is not available. Generally
shorter than P06.08, as there is the urgent need to supply power because the load is not energized.
• P06.08 – Delay for S.Q1 (Line 1) restores to the limit range, used when the load can be connected to S.Q2 (line 2). Ge-
nerally longer than P06.07, as the load is energized and consequently it is possible to wait longer before considering
voltage steadily restored.
• P06.09 - P06.10 – Voltage threshold below which a phase loss intervention occurs, generally quicker than the drop.
The delay for the phase loss is specified by P06.10. This parameter has to be evaluate in function of load (example: da-
maging of engines in case of phase missing).
• P06.11 - P06.12 – P06.11 defines the maximum threshold for unbalance between phases, referred to voltage rating,
and P06.12 defines the related intervention delay. This control may be disabled by setting P06.11 to OFF.
• P06.13 – Max. frequency intervention threshold (it can be disabled).
• P06.14 – Max. frequency intervention delay.
• P06.15 – Min. frequency intervention threshold (it can be disabled).
• P06.16 – Min. frequency intervention delay
• P06.17 – Parameters and described characteristics are referred to ATS in AUT mode.
OFF = S.Q1 (line 1) voltage control in OFF mode disabled.
ON = Voltage control in OFF mode enabled.
OFF+GBL = Voltage control in OFF mode disabled, but the relay programmed with the global alarm function activates
or not depending on whether the voltage is respectively absent or present.
ON+GBL = Voltage control in OFF mode enabled, and the relay programmed with the global alarm function activates
or not depending on whether the voltage is respectively absent or present.
• P06.18 – Parameters and described characteristics are referred to ATS in MAN mode.
OFF = S.Q1 (line 1) voltage control in OFF mode disabled.
ON = Voltage control in OFF mode enabled.
OFF+GBL = Voltage control in OFF mode disabled, but the relay programmed with the global alarm function activates
or not depending on whether the voltage is respectively absent or present.
ON+GBL = Voltage control in OFF mode enabled, and the relay programmed with the global alarm function activates
or not depending on whether the voltage is respectively absent or present.
• P06.19 – Engine start delay when S.Q1 (line 1) fails to meet set limits. If set to OFF, the starting cycle starts when the
mains contactor opens.
• P06.20 – Max. duration of the cooling cycle. Example: time between load disconnection from the generator and when
the engine actually stops.
continues...
