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1.5.6 SDXC300-R1 BYPASS AND INVERTER SCR DRIVER BOARD
This board is used to drive six pairs of SCRs which are used as AC switches for transferring the load
between the inverter output and the bypass supply.
A)
Basic Functions of SDXC300-R1 Board
1.
It accepts the control signals from the main controller board via its CN7 socket and generates gate
drive pulses for either Inverter or Bypass SCRs. Gate drive pulses (7-8kHz) are generated and gated
on this board.
2.
It also accepts the control signal from the main controller board to energize or de-energize the
inverter output contactor (K2). The NO contact of relay RL1 is used for this purpose (CN14).
3.
SDXC300-R1 board is supplied by HF supply signals connected to CN4 or CN5.
B)
SDXC300-R1 Board Test Points
-TP1 : +17V DC (+/-2V)
-TP2 : +12V DC (+/-0.5V)
-TP3 : SCR gate pulse oscillator O/P (approx. 25usec ‘’1’’, 100usec ‘’0’’)
C)
SDXC300-R1 Board Indicator Lamps
- LD1 (red LED) : It is turned on when the bypass SCRs are conducting (‘’BYPASS’’)
- LD2 (green LED) : It is turned on when the nverter SCRs are conducting (‘’INVERTER’’)
- LD3 (green LED) : It is turned on when the nverter output contactor (K2) is energized.
D)
SDXC300-R1 Board ‘’jumper’’ Positions
For ARTonPlus Series UPSs;
JP1 = ‘’0’’ (not inserted or open-circuited)
JP2 = ‘’1’’ (inserted or short-circuited)
JP3 = ‘’1’’ ‘’
JP4 = ‘’1’’ ‘’
Summary of Contents for ARTon Plus series
Page 1: ...SERVICE TRAINING NOTES ARTon Plus SER S UPS 10 15 20 30 40 kVA 3 Faz Giri 3 Faz k...
Page 2: ......
Page 13: ...9 Figure 1 4 2 IGBT Rectifier...
Page 14: ...10 Figure 1 4 3 Transformerless 3 Phase Inverter...
Page 15: ...11 Figure 1 4 4 ARTonPlus series UPS Basic Diagram...
Page 21: ...17 Figure 1 5 3 PFC3P R1 Board...
Page 23: ...19 Figure 1 5 4 IPMD3P Board...
Page 28: ...24 Figure 1 5 5 P3MC R5 Board...
Page 31: ...27 Figure 1 5 6 ADVS01 R1 Board...
Page 33: ...29 Figure 1 5 7 SDXC300 R1 Board...
Page 36: ...32 Figure 1 5 9 ITF3 R2 Board...
Page 39: ...35 Figure 1 5 11 OPS3 Board...
Page 40: ...36...
Page 41: ...37...
Page 42: ...38...
Page 73: ......
Page 74: ...1 AGKK7080 01 2008...
