GE CS300 manual USE of S2 Switch, USE of S3 Switch

GEH-6639

Delay in the thyristor disabling	S1.1	S1.2	S1.3	S1.4
	ON	OFF	OFF	OFF
1.1mS +/- 10%	OFF	ON	ON	OFF
2.2mS +/- 10%	OFF	ON	OFF	ON
3.3mS +/- 10%	OFF	ON	OFF	OFF
4.4mS +/- 10%	OFF	OFF	ON	ON
5.5mS +/- 10%	OFF	OFF	ON	OFF
6.6mS +/- 10%	OFF	OFF	OFF	ON
7.7mS +/- 10%	OFF	OFF	OFF	OFF

cs080

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.

NOTE!With S1.1 ON the delay circuit for the thyristors switching off is disabled. 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

Via the S2 switch it is possible to select the undervoltage threshold, which depends on the AC main voltage of the converter. Dip S2.4 not used

Power supply voltage	S2.1	S2.2	S2.3	Threshold of the PS drop
460V -10%÷480V+10% (Default)	ON	OFF	OFF	370 Vdc
400V +/-15%	OFF	ON	OFF	300 Vdc
( 230 +10/-10% )	OFF	OFF	ON	180 Vdc

cs090

3.4 USE OF S3 SWITCH

The S3 switch is able to set the precharge time for the DC link capacitors (the higher precharge time, the lower will be the current during the precharging phase to the supplied capacitors).

Time (Seconds)	S3.1	S3.2	S3.3	S3.4
18 S +/-15%	OFF	OFF	OFF	OFF
11 S +/-15% (Default)	OFF	OFF	ON	OFF
7 S +/-15%	ON	OFF	OFF	OFF
4 S +/-15%	OFF	ON	OFF	OFF
2 S +/-15%	OFF	OFF	OFF	ON

cs100

Use the following way to select the precharge time:

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