Connecting Backup Power Supply (Optional) - Kemppi AX MIG Welder Operating Manual

2.14 Connecting backup power supply (optional)

The backup power supply is used to ensure that the fieldbus connection stays active even when the main current of the
welding power source is cut off. When the backup power supply is used, all control functions are disabled.
Backup power supply technical requirements
Feature
Supply voltage
Minimum continuous current
Output isolation
As the backup power supply is not isolated from the RCM's normal system potential, use a separate power supply to
avoid connecting different circuit potentials together.
Turn off the power source before connecting the backup power supply.
For instructions on removing and attaching the RCM top cover, refer to "Removing and attaching RCM top cover" on
page 31.
1. Pass the cable for the backup power supply through a cable inlet on RCM. (For information on cable inlets, refer to
"Routing cables into RCM" on page 33.)
2. Connect the wire to the backup power supply terminal (*) on the RCM main board.
© Kemppi
Value
24 V +- 10 %
2 A
SELV (Safety Extra Low Voltage)
46
Terminal pins:
1. Backup power input +
2. Backup power input +
3. Backup power GND
4. Backup power GND
AX MIG Welder
Operating manual - EN
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