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Pc-board DK-DCDRV / DK-S3DRV
The pc-board DK-DCDRV is managing the primary drive level of the power unit Saprom S5 and S8.
The pc-board DK-DCDRV is managing the primary drive level of the power unit Saprom S3.
Functions
- encoding power unit
- connection temperature sensor of heat sink
- supply pc-board LSW
- monitoring DC link voltage and supply voltage
- safety shut-down of power unit
- passthrough signal powerup relais
- passthrough signal „welding current on“ (from pc-board LSW)
Encoding Power Unit
0 = contact open
1 = contact closed
If DIP switches are used instead of jumper: 0 = “OFF“, 1 = “ON“
LED displays
jumper J1 jumper J2 setting machine type
0 0 240 A S5
0 1 270 A S3
1 0 300 A S8
1 1 reserved
normal
LED state designation
1 (red) off primary overcurrent shut down
2 (green) on drive level of low-side is ok
4 (green) on DC link voltage max is ok
5 (green) on drive level of high-side is ok
6 (green) on DC link voltage min is ok
malfunction
LED state reason
1 (red) on primary current is too high, power unit has been switched off
2 (green) never on no drive level low-side
4 (green) off DC link voltage is too high (e.g. mains overvoltage)
5 (green) never on no drive level high-side
6 (green) off DC link voltage is too low (e.g. mains voltage too low)
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