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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)
