3 use of s2 switch, 4 use of s3 switch, 3 use of s2 switch 3.4 use of s3 switch – GE CS300 User Manual
Page 18
GEH-6639
——————— INSTRUCTION MANUAL ————————
18
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
Delay in the thyristor disabling
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
OTE
!
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: