ESAB ESP-150 - Voltage Divider Adjustment

28
MAKE SURE POWER SWITCH ON CONSOLE IS IN OFF POSITION AND
PRIMARY INPUT POWER IS DEENERGIZED.
WARNING
3.3 Voltage Divider Adjustment
Potentiometer
It may be necessary to adjust the Voltage Divider or VDR to match the particular height control system. There are
two default settings for the PowerCut models as shipped from the factory:
1. Place ohm meter leads between W2 (arc voltage) & W3 (work). Adjust R1 to achieve the desired divide
ratio for the particular height control system used. For example:
• STANDARD UNITS (Non-CE): 750 ohms (21:1)
• 16:1 ratio 1000 ohms
• 18:1 ratio 882 ohms
• 21:1 ratio 750 ohms
• 20:1 ratio 789 ohms
2. If desired, additional minor adjustments of the VDR potentiometer may be made. Any adjustments
should be performed by a qualied technician.
• CE UNITS (Europe): 789 ohms (20:1)
If the height control system does not match the factory default setting, matching can be accomplished by ad-
justing the VDR potentiometer.
SECTION 3 INSTALLATION