Use Of S2 Switch - gefran SM32 Manuel D'instruction

Such value meets the needing of both the converter (which for short periods is able to bear
a current value two times the rated one) and the inductance, whose saturation current is
higher than 300A.
Table of S1.1-4 Delay for thyristor switching off during mains dip.
Delay in the thyristor disabling
-
1.1mS +/- 10%
2.2mS +/- 10%
3.3mS +/- 10%
4.4mS +/- 10%
5.5mS +/- 10%
6.6mS +/- 10%
7.7mS +/- 10%
From the above table, considering the example, a delay of 1.1mS is selected by setting:
S1.1 OFF - S1.2 ON - S1.3 ON - S1.4 OFF.
N !
With S1.1 ON the delay circuit for the thyristors switching off is disabled.
OTE
In this case when a mains dip occurs, the thyristors will be switched off;
once mains dip is elapsed, the capacitor precharging sequence will be
executed again (default configuration).

3.3. USE OF S2 SWITCH

The S2 switch select the undervoltage threshold, based on the AC main voltage of the
converter. Dip S2.4 not used
Power supply voltage
460V - %÷480V+10% (Default)
400V +/-15%
( 230 +10/-10% )
40-GB
S1.1
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
S2.1
ON
OFF
OFF
—————— SM 32 ——————
S1.2 S1.3
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
S2.2 S2.3
OFF OFF
ON OFF
OFF ON
S1.4
OFF OFF
ON OFF
OFF ON
OFF OFF
ON ON
ON OFF
OFF ON
OFF OFF
Threshold of the PS drop
≤ 370 Vdc
≤ 300 Vdc
≤ 180 Vdc